🛡️ CVE-2022-36227
🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-476 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In libarchive before 3.6.2, the software does not check for an error after calling calloc function that can return with a NULL pointer if the function fails, which leads to a resultant NULL pointer dereference. NOTE: the discoverer cites this CWE-476 remark but third parties dispute the code-execution impact: "In rare circumstances, when NULL is equivalent to the 0x0 memory address and privileged code can access it, then writing or reading memory is possible, which may lead to code execution."

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-476
Public Exploit ✅ No
Source NVD
Published 2022-11-22
Updated 2026-06-08
Modified 2025-11-03

Affected Packages

Software From version Fixed in
debian-linux — —
fedora — —
libarchive 3.0.0 3.6.2
universal-forwarder — —

References

Issue Tracking, Patch, Third Party Advisory https://bugs.gentoo.org/882521
Issue Tracking, Patch, Third Party Advisory https://github.com/libarchive/libarchive/issues/1754
Issue Tracking, Patch, Third Party Advisory https://bugs.gentoo.org/882521
Issue Tracking, Patch, Third Party Advisory https://github.com/libarchive/libarchive/issues/1754

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