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CVE-2022-42703

Good to know:

Date: October 8, 2022

mm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anon_vma double reuse.

Language: C

Severity Score

5.5

Related Resources (10)

Url: https://github.com/torvalds/linux/commit/2555283eb40df89945557273121e9393ef9b542b

Url: https://nvd.nist.gov/vuln/detail/CVE-2022-42703

Url: https://access.redhat.com/security/cve/CVE-2022-42703

Url: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2555283eb40df89945557273121e9393ef9b542b

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2022-42703

Url: https://googleprojectzero.blogspot.com/2022/12/exploiting-CVE-2022-42703-bringing-back-the-stack-attack.html

Url: https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.7

Url: https://security-tracker.debian.org/tracker/CVE-2022-42703

Url: https://bugs.chromium.org/p/project-zero/issues/detail?id=2351

Url: https://www.mend.io/vulnerability-database/CVE-2022-42703

Severity Score

5.5

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

Upgrade Version

Upgrade to version v4.9.327,v4.14.292,v4.19.257,v5.4.212,v5.10.141,v5.15.65,v5.19.7,v6.0-rc4

CVSS v3.1

Base Score:	5.5
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

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