Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 11 h ago

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.

1,766exploited flaws on CISA’s list
36added in the last 30 days
512new WordPress flaws this week
391,181entries in the database

7 results

  • Dec 19, 2022After tar_close(), libtar.c releases the memory pointed to by pointer t.CVE-2021-33640 · Other software · openEuler · reported by securities@openeuler.orgMedium 6.2

    After tar_close(), libtar.c releases the memory pointed to by pointer t. After tar_close() is called in the list() function, it continues to use pointer t: free_longlink_longname(t->th_buf) . As a result, the released memory is used (use-after-free).

    Product
    openEuler 22.03 LTS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 10, 2022The th_read() function doesn’t free a variable t->th_buf.gnu_longname after allocating memory, which may cause a memory leak.CVE-2021-33646 · Other software · Feep · reported by securities@openeuler.orgHigh 7.5

    The th_read() function doesn’t free a variable t->th_buf.gnu_longname after allocating memory, which may cause a memory leak.

    Product
    Libtar
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 10, 2022The th_read() function doesn’t free a variable t->th_buf.gnu_longlink after allocating memory, which may cause a memory leak.CVE-2021-33645 · Other software · Feep · reported by securities@openeuler.orgHigh 7.5

    The th_read() function doesn’t free a variable t->th_buf.gnu_longlink after allocating memory, which may cause a memory leak.

    Product
    Libtar
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 10, 2022An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longname, causinCVE-2021-33644 · Other software · Feep · reported by securities@openeuler.orgHigh 8.1

    An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longname, causing an out-of-bounds read.

    Product
    Libtar
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 10, 2022An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longlink, causinCVE-2021-33643 · Other software · Feep · reported by securities@openeuler.orgCritical 9.1

    An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longlink, causing an out-of-bounds read.

    Product
    Libtar
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 20, 2014Multiple directory traversal vulnerabilities in the (1) tar_extract_glob and (2) tar_extract_all functions in libtar 1.2.20 and earlier allow remote attackers tCVE-2013-4420 · Other software · Feep · reported by Red HatMedium 5.8

    Multiple directory traversal vulnerabilities in the (1) tar_extract_glob and (2) tar_extract_all functions in libtar 1.2.20 and earlier allow remote attackers to overwrite arbitrary files via a .. (dot dot) in a crafted tar file.

    Product
    Libtar
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 17, 2013Multiple integer overflows in the th_read function in lib/block.c in libtar before 1.2.20 allow remote attackers to cause a denial of service (crash) and possibCVE-2013-4397 · Other software · Redhat · reported by Red HatMedium 6.8

    Multiple integer overflows in the th_read function in lib/block.c in libtar before 1.2.20 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long (1) name or (2) link in an archive, which triggers a heap-based buffer overflow.

    Product
    Enterprise Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.

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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