Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
1,934 results · page 31 of 39
Jun 2, 2021An issue was discovered in Pillow before 8.2.0.CVE-2021-25287 · Other software · Python · reported by MITRECritical 9.1
An issue was discovered in Pillow before 8.2.0. There is an out-of-bounds read in J2kDecode, in j2ku_graya_la.
- Product
- Pillow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comlists.fedoraproject.org
Jun 2, 2021An issue was discovered in Pillow before 8.2.0.CVE-2021-28675 · Other software · Python · reported by MITREMedium 5.5
An issue was discovered in Pillow before 8.2.0. PSDImagePlugin.PsdImageFile lacked a sanity check on the number of input layers relative to the size of the data block. This could lead to a DoS on Image.open prior to Image.load.
- Product
- Pillow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orgpillow.readthedocs.io
May 21, 2021Plone through 5.2.4 allows remote authenticated managers to perform disk I/O via crafted keyword arguments to the ReStructuredText transform in a Python script.CVE-2021-33509 · Other software · Plone · reported by MITRECritical 9.9
Plone through 5.2.4 allows remote authenticated managers to perform disk I/O via crafted keyword arguments to the ReStructuredText transform in a Python script.
- Product
- Plone
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 20, 2021There's a flaw in Python 3's pydoc.CVE-2021-3426 · Other software · Siemens · reported by Red HatMedium 5.7
There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access. The highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9, Python versions before 3.9.3 and Python versions before 3.10.0a7.
- Product
- SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugzilla.redhat.comlists.debian.org
May 17, 2021The Python "Flask-Security-Too" package is used for adding security features to your Flask application.CVE-2021-32618 · Other software · Flask-Middleware · reported by GitHubLow 3.1
The Python "Flask-Security-Too" package is used for adding security features to your Flask application. It is an is an independently maintained version of Flask-Security based on the 3.0.0 version of Flask-Security. All versions of Flask-Security-Too allow redirects after many successful views (e.g. /login) by honoring the ?next query param. There is code in FS to validate that the url specified in the next parameter is either relative OR has the same netloc (network location) as the requesting URL. This check utilizes Pythons urlsplit library. However many browsers are very lenient on the kind of URL they accept and 'fill in the blanks' when presented with a possibly incomplete URL. As a concrete example - setting http://login?next=\\\github.com will pass FS's relative URL check however many browsers will gladly convert this to http://github.com. Thus an attacker could send such a link to an unwitting user, using a legitimate site and have it redirect to whatever site they want. This is considered a low severity due to the fact that if Werkzeug is used (which is very common with Flask applications) as the WSGI layer, it by default ALWAYS ensures that the Location header is absolut
- Product
- flask-security
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 13, 2021Pydantic is a data validation and settings management using Python type hinting.CVE-2021-29510 · Other software · samuelcolvin · reported by GitHubLow 3.3
Pydantic is a data validation and settings management using Python type hinting. In affected versions passing either `'infinity'`, `'inf'` or `float('inf')` (or their negatives) to `datetime` or `date` fields causes validation to run forever with 100% CPU usage (on one CPU). Pydantic has been patched with fixes available in the following versions: v1.8.2, v1.7.4, v1.6.2. All these versions are available on pypi(https://pypi.org/project/pydantic/#history), and will be available on conda-forge(https://anaconda.org/conda-forge/pydantic) soon. See the changelog(https://pydantic-docs.helpmanual.io/) for details. If you absolutely can't upgrade, you can work around this risk using a validator(https://pydantic-docs.helpmanual.io/usage/validators/) to catch these values. This is not an ideal solution (in particular you'll need a slightly different function for datetimes), instead of a hack like this you should upgrade pydantic. If you are not using v1.8.x, v1.7.x or v1.6.x and are unable to upgrade to a fixed version of pydantic, please create an issue at https://github.com/samuelcolvin/pydantic/issues requesting a back-port, and we will endeavour to release a patch for earlier versions of
- Product
- pydantic
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 11, 2021Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse).CVE-2021-29471 · Other software · matrix-org · reported by GitHubLow 3.7
Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.33.2 "Push rules" can specify conditions under which they will match, including `event_match`, which matches event content against a pattern including wildcards. Certain patterns can cause very poor performance in the matching engine, leading to a denial-of-service when processing moderate length events. The issue is patched in version 1.33.2. A potential workaround might be to prevent users from making custom push rules, by blocking such requests at a reverse-proxy.
- Product
- synapse
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 7, 2021Eventlet is a concurrent networking library for Python.CVE-2021-21419 · Other software · eventlet · reported by GitHubMedium 5.3
Eventlet is a concurrent networking library for Python. A websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame. A patch in version 0.31.0 restricts websocket frame to reasonable limits. As a workaround, restricting memory usage via OS limits would help against overall machine exhaustion, but there is no workaround to protect Eventlet process.
- Product
- eventlet
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comlists.fedoraproject.org
May 6, 2021In Django 2.2 before 2.2.22, 3.1 before 3.1.10, and 3.2 before 3.2.2 (with Python 3.9.5+), URLValidator does not prohibit newlines and tabs (unless the URLFieldCVE-2021-32052 · Other software · Djangoproject · reported by MITREMedium 6.1
In Django 2.2 before 2.2.22, 3.1 before 3.1.10, and 3.2 before 3.2.2 (with Python 3.9.5+), URLValidator does not prohibit newlines and tabs (unless the URLField form field is used). If an application uses values with newlines in an HTTP response, header injection can occur. Django itself is unaffected because HttpResponse prohibits newlines in HTTP headers.
- Product
- Django
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordopenwall.comdocs.djangoproject.com
May 6, 2021In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP address string.CVE-2021-29921 · Other software · Python · reported by MITRECritical 9.8
In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP address string. This (in some situations) allows attackers to bypass access control that is based on IP addresses.
- Product
- Python
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.python.orgdocs.python.org
Apr 12, 2021Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse).CVE-2021-21393 · Other software · matrix-org · reported by GitHubMedium 5.3
Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.28.0 Synapse is missing input validation of some parameters on the endpoints used to confirm third-party identifiers could cause excessive use of disk space and memory leading to resource exhaustion. Note that the groups feature is not part of the Matrix specification and the chosen maximum lengths are arbitrary. Not all clients might abide by them. Refer to referenced GitHub security advisory for additional details including workarounds.
- Product
- synapse
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 12, 2021Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse).CVE-2021-21392 · Other software · matrix-org · reported by GitHubMedium 6.3
Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.28.0 requests to user provided domains were not restricted to external IP addresses when transitional IPv6 addresses were used. Outbound requests to federation, identity servers, when calculating the key validity for third-party invite events, sending push notifications, and generating URL previews are affected. This could cause Synapse to make requests to internal infrastructure on dual-stack networks. See referenced GitHub security advisory for details and workarounds.
- Product
- synapse
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 12, 2021Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse).CVE-2021-21394 · Other software · matrix-org · reported by GitHubMedium 5.3
Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.28.0 Synapse is missing input validation of some parameters on the endpoints used to confirm third-party identifiers could cause excessive use of disk space and memory leading to resource exhaustion. Note that the groups feature is not part of the Matrix specification and the chosen maximum lengths are arbitrary. Not all clients might abide by them. Refer to referenced GitHub security advisory for additional details including workarounds.
- Product
- synapse
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 1, 2021models/metadata.py in the pikepdf package 1.3.0 through 2.9.2 for Python allows XXE when parsing XMP metadata entries.CVE-2021-29421 · Other software · Pikepdf Project · reported by MITREHigh 7.5
models/metadata.py in the pikepdf package 1.3.0 through 2.9.2 for Python allows XXE when parsing XMP metadata entries.
- Product
- Pikepdf
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 26, 2021Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse).CVE-2021-21333 · Other software · matrix-org · reported by GitHubMedium 6.1
Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.27.0, the notification emails sent for notifications for missed messages or for an expiring account are subject to HTML injection. In the case of the notification for missed messages, this could allow an attacker to insert forged content into the email. The account expiry feature is not enabled by default and the HTML injection is not controllable by an attacker. This is fixed in version 1.27.0.
- Product
- synapse
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 26, 2021Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse).CVE-2021-21332 · Other software · matrix-org · reported by GitHubMedium 6.9
Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.27.0, the password reset endpoint served via Synapse was vulnerable to cross-site scripting (XSS) attacks. The impact depends on the configuration of the domain that Synapse is deployed on, but may allow access to cookies and other browser data, CSRF vulnerabilities, and access to other resources served on the same domain or parent domains. This is fixed in version 1.27.0.
- Product
- synapse
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 21, 2021An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3.CVE-2021-28957 · Other software · Lxml · reported by MITREMedium 6.1
An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute allowing for JS to bypass the sanitizer. A remote attacker could exploit this flaw to run arbitrary JS code on users who interact with incorrectly sanitized HTML. This issue is patched in lxml 4.6.3.
- Product
- Lxml
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.launchpad.netgithub.com
Mar 19, 2021An issue was discovered in Pillow before 8.1.1.CVE-2021-25293 · Other software · Python · reported by MITREHigh 7.5
An issue was discovered in Pillow before 8.1.1. There is an out-of-bounds read in SGIRleDecode.c.
- Product
- Pillow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordpillow.readthedocs.iosecurity.gentoo.org
Mar 19, 2021An issue was discovered in Pillow before 8.1.1.CVE-2021-25292 · Other software · Python · reported by MITREMedium 6.5
An issue was discovered in Pillow before 8.1.1. The PDF parser allows a regular expression DoS (ReDoS) attack via a crafted PDF file because of a catastrophic backtracking regex.
- Product
- Pillow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordpillow.readthedocs.iosecurity.gentoo.org
Mar 19, 2021An issue was discovered in Pillow before 8.1.1.CVE-2021-25291 · Other software · Python · reported by MITREHigh 7.5
An issue was discovered in Pillow before 8.1.1. In TiffDecode.c, there is an out-of-bounds read in TiffreadRGBATile via invalid tile boundaries.
- Product
- Pillow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordpillow.readthedocs.iosecurity.gentoo.org
Mar 19, 2021An issue was discovered in Pillow before 8.1.1.CVE-2021-25290 · Other software · Python · reported by MITREHigh 7.5
An issue was discovered in Pillow before 8.1.1. In TiffDecode.c, there is a negative-offset memcpy with an invalid size.
- Product
- Pillow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.debian.orgpillow.readthedocs.io
Mar 19, 2021An issue was discovered in Pillow before 8.1.1.CVE-2021-25289 · Other software · Python · reported by MITRECritical 9.8
An issue was discovered in Pillow before 8.1.1. TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode. NOTE: this issue exists because of an incomplete fix for CVE-2020-35654.
- Product
- Pillow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordpillow.readthedocs.iosecurity.gentoo.org
Mar 15, 2021The urllib3 library 1.26.x before 1.26.4 for Python omits SSL certificate validation in some cases involving HTTPS to HTTPS proxies.CVE-2021-28363 · Other software · Siemens · reported by MITREMedium 6.5
The urllib3 library 1.26.x before 1.26.4 for Python omits SSL certificate validation in some cases involving HTTPS to HTTPS proxies. The initial connection to the HTTPS proxy (if an SSLContext isn't given via proxy_config) doesn't verify the hostname of the certificate. This means certificates for different servers that still validate properly with the default urllib3 SSLContext will be silently accepted.
- Product
- SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 3, 2021Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked foCVE-2021-27923 · Other software · Python · reported by MITREHigh 7.5
Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICO container, and thus an attempted memory allocation can be very large.
- Product
- Pillow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
Mar 3, 2021Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked foCVE-2021-27922 · Other software · Python · reported by MITREHigh 7.5
Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICNS container, and thus an attempted memory allocation can be very large.
- Product
- Pillow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
Mar 3, 2021Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked foCVE-2021-27921 · Other software · Python · reported by MITREHigh 7.5
Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for a BLP container, and thus an attempted memory allocation can be very large.
- Product
- Pillow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
Feb 26, 2021Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse).CVE-2021-21274 · Other software · matrix-org · reported by GitHubMedium 4.3
Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.25.0, a malicious homeserver could redirect requests to their .well-known file to a large file. This can lead to a denial of service attack where homeservers will consume significantly more resources when requesting the .well-known file of a malicious homeserver. This affects any server which accepts federation requests from untrusted servers. Issue is resolved in version 1.25.0. As a workaround the `federation_domain_whitelist` setting can be used to restrict the homeservers communicated with over federation.
- Product
- synapse
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 26, 2021Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse).CVE-2021-21273 · Other software · matrix-org · reported by GitHubLow 3.1
Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.25.0, requests to user provided domains were not restricted to external IP addresses when calculating the key validity for third-party invite events and sending push notifications. This could cause Synapse to make requests to internal infrastructure. The type of request was not controlled by the user, although limited modification of request bodies was possible. For the most thorough protection server administrators should remove the deprecated `federation_ip_range_blacklist` from their settings after upgrading to Synapse v1.25.0 which will result in Synapse using the improved default IP address restrictions. See the new `ip_range_blacklist` and `ip_range_whitelist` settings if more specific control is necessary.
- Product
- synapse
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 25, 2021aiohttp is an asynchronous HTTP client/server framework for asyncio and Python.CVE-2021-21330 · Other software · aio-libs · reported by GitHubLow 3.1
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In aiohttp before version 3.7.4 there is an open redirect vulnerability. A maliciously crafted link to an aiohttp-based web-server could redirect the browser to a different website. It is caused by a bug in the `aiohttp.web_middlewares.normalize_path_middleware` middleware. This security problem has been fixed in 3.7.4. Upgrade your dependency using pip as follows "pip install aiohttp >= 3.7.4". If upgrading is not an option for you, a workaround can be to avoid using `aiohttp.web_middlewares.normalize_path_middleware` in your applications.
- Product
- aiohttp
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 17, 2021Digi ConnectPort X2e before 3.2.30.6 allows an attacker to escalate privileges from the python user to root via a symlink attack that uses chown, related to /etCVE-2020-12878 · Other software · Digi · reported by MITREHigh 7.8
Digi ConnectPort X2e before 3.2.30.6 allows an attacker to escalate privileges from the python user to root via a symlink attack that uses chown, related to /etc/init.d/S50dropbear.sh and the /WEB/python/.ssh directory.
- Product
- Connectport X2e Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 15, 2021The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to WeCVE-2021-23336 · Other software · Siemens · reported by report@snyk.ioMedium 5.9
The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.
- Product
- SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordopenwall.comopenwall.com
Feb 8, 2021httplib2 is a comprehensive HTTP client library for Python.CVE-2021-21240 · Other software · httplib2 · reported by GitHubHigh 7.5
httplib2 is a comprehensive HTTP client library for Python. In httplib2 before version 0.19.0, a malicious server which responds with long series of "\xa0" characters in the "www-authenticate" header may cause Denial of Service (CPU burn while parsing header) of the httplib2 client accessing said server. This is fixed in version 0.19.0 which contains a new implementation of auth headers parsing using the pyparsing library.
- Product
- httplib2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 7, 2021In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overfCVE-2020-36242 · Other software · Cryptography.io · reported by MITRECritical 9.1
In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.
- Product
- Cryptography
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 21, 2021PySAML2 is a pure python implementation of SAML Version 2 Standard.CVE-2021-21239 · Other software · IdentityPython · reported by GitHubMedium 6.5
PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper verification of cryptographic signature vulnerability. Users of pysaml2 that use the default CryptoBackendXmlSec1 backend and need to verify signed SAML documents are impacted. PySAML2 does not ensure that a signed SAML document is correctly signed. The default CryptoBackendXmlSec1 backend is using the xmlsec1 binary to verify the signature of signed SAML documents, but by default xmlsec1 accepts any type of key found within the given document. xmlsec1 needs to be configured explicitly to only use only _x509 certificates_ for the verification process of the SAML document signature. This is fixed in PySAML2 6.5.0.
- Product
- pysaml2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 21, 2021PySAML2 is a pure python implementation of SAML Version 2 Standard.CVE-2021-21238 · Other software · IdentityPython · reported by GitHubMedium 6.5
PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper verification of cryptographic signature vulnerability. All users of pysaml2 that need to validate signed SAML documents are impacted. The vulnerability is a variant of XML Signature wrapping because it did not validate the SAML document against an XML schema. This allowed invalid XML documents to be processed and such a document can trick pysaml2 with a wrapped signature. This is fixed in PySAML2 6.5.0.
- Product
- pysaml2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 19, 2021Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code execution in certain Python applications thatCVE-2021-3177 · Other software · Siemens · reported by MITRECritical 9.8
Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code execution in certain Python applications that accept floating-point numbers as untrusted input, as demonstrated by a 1e300 argument to c_double.from_param. This occurs because sprintf is used unsafely.
- Product
- SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.python.orggithub.com
Jan 12, 2021In Pillow before 8.1.0, SGIRleDecode has a 4-byte buffer over-read when decoding crafted SGI RLE image files because offsets and length tables are mishandled.CVE-2020-35655 · Other software · Python · reported by MITREMedium 5.4
In Pillow before 8.1.0, SGIRleDecode has a 4-byte buffer over-read when decoding crafted SGI RLE image files because offsets and length tables are mishandled.
- Product
- Pillow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
Jan 12, 2021In Pillow before 8.1.0, TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF iCVE-2020-35654 · Other software · Python · reported by MITREHigh 8.8
In Pillow before 8.1.0, TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode.
- Product
- Pillow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
Jan 12, 2021In Pillow before 8.1.0, PcxDecode has a buffer over-read when decoding a crafted PCX file because the user-supplied stride value is trusted for buffer calculatiCVE-2020-35653 · Other software · Python · reported by MITREHigh 7.1
In Pillow before 8.1.0, PcxDecode has a buffer over-read when decoding a crafted PCX file because the user-supplied stride value is trusted for buffer calculations.
- Product
- Pillow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.debian.orglists.fedoraproject.org
Jan 11, 2021The Python "Flask-Security-Too" package is used for adding security features to your Flask application.CVE-2021-21241 · Other software · Flask-Middleware · reported by GitHubHigh 7.4
The Python "Flask-Security-Too" package is used for adding security features to your Flask application. It is an is a independently maintained version of Flask-Security based on the 3.0.0 version of Flask-Security. In Flask-Security-Too from version 3.3.0 and before version 3.4.5, the /login and /change endpoints can return the authenticated user's authentication token in response to a GET request. Since GET requests aren't protected with a CSRF token, this could lead to a malicious 3rd party site acquiring the authentication token. Version 3.4.5 and version 4.0.0 are patched. As a workaround, if you aren't using authentication tokens - you can set the SECURITY_TOKEN_MAX_AGE to "0" (seconds) which should make the token unusable.
- Product
- flask-security-too
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 11, 2021python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.CVE-2020-25659 · Other software · Cryptography.io · reported by Red HatMedium 5.9
python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.
- Product
- Cryptography
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 6, 2021CairoSVG is a Python (pypi) package.CVE-2021-21236 · Other software · Kozea · reported by GitHubMedium 5.7
CairoSVG is a Python (pypi) package. CairoSVG is an SVG converter based on Cairo. In CairoSVG before version 2.5.1, there is a regular expression denial of service (REDoS) vulnerability. When processing SVG files, the python package CairoSVG uses two regular expressions which are vulnerable to Regular Expression Denial of Service (REDoS). If an attacker provides a malicious SVG, it can make cairosvg get stuck processing the file for a very long time. This is fixed in version 2.5.1. See Referenced GitHub advisory for more information.
- Product
- CairoSVG
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 26, 2020Autobahn|Python before 20.12.3 allows redirect header injection.CVE-2020-35678 · Other software · Crossbar · reported by MITREMedium 6.1
Autobahn|Python before 20.12.3 allows redirect header injection.
- Product
- Autobahn
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordautobahn.readthedocs.iogithub.com
Dec 22, 2020A sandboxing issue in Odoo Community 11.0 through 13.0 and Odoo Enterprise 11.0 through 13.0, when running with Python 3.6 or later, allows remote authenticatedCVE-2020-29396 · Other software · Odoo · reported by security@odoo.comHigh 8.8
A sandboxing issue in Odoo Community 11.0 through 13.0 and Odoo Enterprise 11.0 through 13.0, when running with Python 3.6 or later, allows remote authenticated users to execute arbitrary code, leading to privilege escalation.
- Product
- Odoo Community
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 21, 2020tlslite-ng is an open source python library that implements SSL and TLS cryptographic protocols.CVE-2020-26263 · Other software · tlsfuzzer · reported by GitHubHigh 7.5
tlslite-ng is an open source python library that implements SSL and TLS cryptographic protocols. In tlslite-ng before versions 0.7.6 and 0.8.0-alpha39, the code that performs decryption and padding check in RSA PKCS#1 v1.5 decryption is data dependant. In particular, the code has multiple ways in which it leaks information about the decrypted ciphertext. It aborts as soon as the plaintext doesn't start with 0x00, 0x02. All TLS servers that enable RSA key exchange as well as applications that use the RSA decryption API directly are vulnerable. This is patched in versions 0.7.6 and 0.8.0-alpha39. Note: the patches depend on Python processing the individual bytes in side-channel free manner, this is known to not the case (see reference). As such, users that require side-channel resistance are recommended to use different TLS implementations, as stated in the security policy of tlslite-ng.
- Product
- tlslite-ng
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 9, 2020Various memory and file descriptor leaks were found in apt-python files python/arfile.cc, python/tag.cc, python/tarfile.cc, aka GHSL-2020-170.CVE-2020-27351 · Other software · Canonical · reported by security@ubuntu.comLow 2
Various memory and file descriptor leaks were found in apt-python files python/arfile.cc, python/tag.cc, python/tarfile.cc, aka GHSL-2020-170. This issue affects: python-apt 1.1.0~beta1 versions prior to 1.1.0~beta1ubuntu0.16.04.10; 1.6.5ubuntu0 versions prior to 1.6.5ubuntu0.4; 2.0.0ubuntu0 versions prior to 2.0.0ubuntu0.20.04.2; 2.1.3ubuntu1 versions prior to 2.1.3ubuntu1.1;
- Product
- python-apt
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.launchpad.netusn.ubuntu.com
Dec 9, 2020A denial of service via regular expression in the py.path.svnwc component of py (aka python-py) through 1.9.0 could be used by attackers to cause a compute-timeCVE-2020-29651 · Other software · Pytest · reported by MITREHigh 7.5
A denial of service via regular expression in the py.path.svnwc component of py (aka python-py) through 1.9.0 could be used by attackers to cause a compute-time denial of service attack by supplying malicious input to the blame functionality.
- Product
- PY
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 3, 2020A XSS vulnerability was discovered in python-lxml's clean module.CVE-2020-27783 · Other software · Lxml · reported by Red HatMedium 6.1
A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly imitate browsers, which caused different behaviors between the sanitizer and the user's page. A remote attacker could exploit this flaw to run arbitrary HTML/JS code.
- Product
- Lxml
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordadvisory.checkmarx.netbugzilla.redhat.com
Dec 2, 2020Python oic is a Python OpenID Connect implementation.CVE-2020-26244 · Other software · OpenIDC · reported by GitHubMedium 6.8
Python oic is a Python OpenID Connect implementation. In Python oic before version 1.2.1, there are several related cryptographic issues affecting client implementations that use the library. The issues are: 1) The IdToken signature algorithm was not checked automatically, but only if the expected algorithm was passed in as a kwarg. 2) JWA `none` algorithm was allowed in all flows. 3) oic.consumer.Consumer.parse_authz returns an unverified IdToken. The verification of the token was left to the discretion of the implementator. 4) iat claim was not checked for sanity (i.e. it could be in the future). These issues are patched in version 1.2.1.
- Product
- pyoidc
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 16, 2020A weak robustness vulnerability exists in the AWS Encryption SDKs for Java, Python, C and Javalcript prior to versions 2.0.0.CVE-2020-8897 · Other software · Amazon · reported by cve-coordination@google.comMedium 4.8
A weak robustness vulnerability exists in the AWS Encryption SDKs for Java, Python, C and Javalcript prior to versions 2.0.0. Due to the non-committing property of AES-GCM (and other AEAD ciphers such as AES-GCM-SIV or (X)ChaCha20Poly1305) used by the SDKs to encrypt messages, an attacker can craft a unique cyphertext which will decrypt to multiple different results, and becomes especially relevant in a multi-recipient setting. We recommend users update their SDK to 2.0.0 or later.
- Product
- AWS SDK
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordaws.amazon.comgithub.com
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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