PT-2025-8496 · Linux+3 · Linux Kernel+3

Giovanni Cabiddu · Published 2022-01-01 · Updated 2026-03-14 · CVE-2022-49563

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 underflow issue has been identified in the Linux kernel's crypto subsystem, specifically in the QAT (Quick Assist Technology) module when handling RSA requests. This issue could occur when copying the source scatterlist into a linear buffer, potentially leading to problems if the source buffer is larger than the key size.

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

Exploit

Integer Underflow

Weakness Enumeration

CWE-191

Related Identifiers

BDU:2026-02651

CVE-2022-49563

OPENSUSE-SU-2025_1213-1

OPENSUSE-SU-2025_1225-1

OPENSUSE-SU-2025_1248-1

OPENSUSE-SU-2025_1254-1

OPENSUSE-SU-2025_1259-1

OPENSUSE-SU-2025_1260-1

OPENSUSE-SU-2025_1262-1

OPENSUSE-SU-2025_1263-1

OPENSUSE-SU-2025_1275-1

SUSE-SU-2025:01907-1

SUSE-SU-2025:01908-1

SUSE-SU-2025:01956-1

SUSE-SU-2025:01958-1

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1194-1

SUSE-SU-2025:1213-1

SUSE-SU-2025:1225-1

SUSE-SU-2025:1231-1

SUSE-SU-2025:1236-1

SUSE-SU-2025:1241-1

SUSE-SU-2025:1248-1

SUSE-SU-2025:1254-1

SUSE-SU-2025:1259-1

SUSE-SU-2025:1260-1

SUSE-SU-2025:1262-1

SUSE-SU-2025:1263-1

SUSE-SU-2025:1275-1

SUSE-SU-2025:1278-1

SUSE-SU-2025:1293-1

SUSE-SU-2025:4123-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

SUSE-SU-2025_1263-1

SUSE-SU-2025_1293-1

Affected Products

Astra Linux

Debian

Linux Kernel

Suse

References · 1644

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49563.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49563 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1213-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49563 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1225-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://git.kernel.org/stable/c/4d6d2adce08788b7667a6e58002682ea1bbf6a79 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1262-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1236-1 · Vendor Advisory
• https://git.kernel.org/stable/c/9714061423b8b24b8afb31b8eb4df977c63f19c4 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49563 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49563 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1254-1 · Vendor Advisory
• https://git.kernel.org/stable/c/f993321e50ba7a8ba4f5b19939e1772a921a1c42 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1260-1 · Vendor Advisory