PT-2025-54158 · Linux · Linux Kernel

Published 2023-05-05 · Updated 2026-03-24 · CVE-2023-54312

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 (affected versions not specified)

Description A buffer overflow issue was identified and resolved in the tcp basertt function within the samples/bpf module of the Linux kernel. The issue stemmed from incorrect size calculations when handling network variables (nv). Specifically, using sizeof(nv) or strlen(nv)+1 is the correct approach to prevent the overflow.

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

Exploit

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2026-01178

CVE-2023-54312

RHSA-2024:2394

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 · 1474

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54312.json · Exploit
• https://cve.org/CVERecord?id=CVE-2023-54312 · Security Note
• https://ubuntu.com/security/CVE-2023-54312 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20477-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01178 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:0293-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20876-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-54312 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0315-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20845-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0278-1 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-54312 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-54312 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54312 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0281-1 · Vendor Advisory