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CVE-2022-36227

Date: November 21, 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."

Language: C

Severity Score

Related Resources (11)

https://security-tracker.debian.org/tracker/CVE-2022-36227
https://access.redhat.com/security/cve/CVE-2022-36227
https://github.com/libarchive/libarchive/blob/v3.0.0a/libarchive/archive_write.c#L215
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V67OO2UUQAUJS3IK4JZPF6F3LUCBU6IS/
https://security.gentoo.org/glsa/202309-14
https://github.com/libarchive/libarchive/issues/1754
https://bugs.gentoo.org/882521
https://nvd.nist.gov/vuln/detail/CVE-2022-36227
https://lists.debian.org/debian-lts-announce/2023/01/msg00034.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V67OO2UUQAUJS3IK4JZPF6F3LUCBU6IS/
https://www.mend.io/vulnerability-database/CVE-2022-36227

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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