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CVE-2022-36227

Published: 22 November 2022

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."

Notes

AuthorNote
mdeslaur
most likely a denial of service only

Priority

Low

CVSS 3 base score: 9.8

Status

Package Release Status
libarchive
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Needs triage

kinetic Needs triage

trusty Needs triage

upstream Needs triage

xenial Needs triage

Patches:
upstream: https://github.com/libarchive/libarchive/commit/bff38efe8c110469c5080d387bec62a6ca15b1a5