CVE-2022-36227

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.

Weakness

The product dereferences a pointer that it expects to be valid but is NULL.

Affected Software

Name	Vendor	Start Version	End Version
Libarchive	Libarchive	3.0.0 (including)	3.6.2 (excluding)
Red Hat Enterprise Linux 8	RedHat	libarchive-0:3.3.3-5.el8	*
Red Hat Enterprise Linux 8.6 Extended Update Support	RedHat	libarchive-0:3.3.3-4.el8_6	*
Red Hat Enterprise Linux 9	RedHat	libarchive-0:3.5.3-4.el9	*
Red Hat Enterprise Linux 9	RedHat	libarchive-0:3.5.3-4.el9	*
Libarchive	Ubuntu	bionic	*
Libarchive	Ubuntu	esm-infra-legacy/trusty	*
Libarchive	Ubuntu	esm-infra/bionic	*
Libarchive	Ubuntu	esm-infra/focal	*
Libarchive	Ubuntu	esm-infra/xenial	*
Libarchive	Ubuntu	focal	*
Libarchive	Ubuntu	jammy	*
Libarchive	Ubuntu	kinetic	*
Libarchive	Ubuntu	trusty	*
Libarchive	Ubuntu	trusty/esm	*
Libarchive	Ubuntu	upstream	*
Libarchive	Ubuntu	xenial	*

NVD	https://nvd.nist.gov/vuln/detail/CVE-2022-36227
CWE	https://cwe.mitre.org/data/definitions/476.html

NULL Pointer Dereference

Weakness

Affected Software

Potential Mitigations

References