PT-2025-8576 · Linux+5 · Linux Kernel+5

Huaxin Lu + 1 · Published 2025-02-26 · Updated 2025-11-12 · CVE-2022-49643

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A potential integer overflow issue has been identified in the Linux kernel, specifically in the ima appraise measurement function when ima-modsig is enabled. This occurs because the rc passed to evm verifyxattr() may be negative, leading to the integer overflow problem.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

ALSA-2025:20518

CVE-2022-49643

INFSA-2025_20518

OPENSUSE-SU-2025_1263-1

RHSA-2025:20518

RHSA-2025_20518

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1194-1

SUSE-SU-2025:1241-1

SUSE-SU-2025:1263-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

SUSE-SU-2025_1263-1

Affected Products

Almalinux

Astra Linux

Linux Kernel

Red Hat

Rocky Linux

Suse

References · 1570

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49643.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2025:1263-1 · Vendor Advisory
• https://errata.almalinux.org/9/ALSA-2025-20518.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1027-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2025-20518-0.html · Vendor Advisory
• https://git.kernel.org/stable/c/640cea4c2839a821adfbb703b590a5928abe9286 · Patch
• https://cve.org/CVERecord?id=CVE-2022-49643 · Security Note
• https://ubuntu.com/security/CVE-2022-49643 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49643 · Vendor Advisory
• https://git.kernel.org/stable/c/d2ee2cfc4aa85ff6a2a3b198a3a524ec54e3d999 · Patch
• https://osv.dev/vulnerability/ALSA-2025:20518 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49643 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1194-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory