PT-2025-8081 · Linux+3 · Linux Kernel+3

Wang Hai · Published 2022-11-15 · Updated 2025-09-29 · CVE-2022-49153

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 memory leak issue has been identified in the Linux kernel, specifically in the wireguard socket implementation. The problem occurs when the send6 function is used without freeing the socket buffer (skb) when IPv6 is disabled. This results in an unreferenced object and a memory leak. The issue is related to the wg socket send buffer to peer and wg packet send handshake initiation functions. A patch has been added to fix this bug by including the necessary kfree skb call when IPv6 is disabled.

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

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

ALSA-2025_16880

CVE-2022-49153

OPENSUSE-SU-2025_1263-1

RHSA-2022:8267

RHSA-2022_8267

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

Astra Linux

Linux Kernel

Red Hat

Suse

References · 1343

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49153.json · Exploit
• https://git.kernel.org/stable/c/bbbf962d9460194993ee1943a793a0a0af4a7fbf · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1183-1 · Vendor Advisory
• https://git.kernel.org/stable/c/402991a9771587acc2947cf6c4d689c5397f2258 · Patch
• https://git.kernel.org/stable/c/0b19bcb753dbfb74710d12bb2761ec5ed706c726 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49153 · Vendor Advisory
• https://git.kernel.org/stable/c/ebcc492f4ba14bae54b898f1016a37b4282558d1 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49153 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49153 · Security Note
• https://ubuntu.com/security/CVE-2022-49153 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1194-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1027-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49153 · Vendor Advisory