PT-2025-53171 · Linux · Linux Kernel

Published 2023-07-08 · Updated 2026-03-24 · CVE-2023-54094

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

AV:L/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.4.0 #364

Description The Linux kernel contained a flaw where segmentation of packets using rx-gro-list could lead to skb corruption due to unsafe writes to cloned skbs with shared heads. This issue occurred when packets were processed through a bridge and directed to both a local input path and an egress device (tun). The correction involves uncloning skbs as needed before segmentation to prevent the corruption.

Recommendations Update the Linux kernel to version 6.4.0 #364 or later.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2026-01234

CVE-2023-54094

SUSE-SU-2026:0278-1

SUSE-SU-2026:0281-1

SUSE-SU-2026:0293-1

SUSE-SU-2026:0315-1

SUSE-SU-2026:20477-1

SUSE-SU-2026:20498-1

SUSE-SU-2026:20845-1

SUSE-SU-2026:20876-1

Affected Products

Linux Kernel

References · 1465

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54094.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2023-54094 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54094 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20845-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-54094 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:0281-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20876-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0293-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20498-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01234 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:20477-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0278-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-54094 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-54094 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-54094 · Vendor Advisory