PT-2025-13342 · Linux+2 · Linux Kernel+2

Published 2023-01-20 · Updated 2025-10-30 · CVE-2023-52996

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 spectre v1 gadget in the fib metrics match() function has been resolved. The issue arises from the use of the type variable as an array index, which could lead to cpu speculation and potentially leak kernel memory content. The function fib metrics match() is used in the ipv4 protocol.

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

BDU:2025-06260

CVE-2023-52996

Affected Products

Astra Linux

Linux Kernel

Red Os

References · 22

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52996.json · Exploit
• https://git.kernel.org/stable/c/f9753ebd61be2d957b5504cbd3fd719674f05b7a · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-52996 · Security Note
• https://git.kernel.org/stable/c/7f9828fb1f688210e681268490576f0ca65c322a · Patch
• https://git.kernel.org/stable/c/8f0eb24f1a7a60ce635f0d757a46f1a37a4d467d · Patch
• https://git.kernel.org/stable/c/5e9398a26a92fc402d82ce1f97cc67d832527da0 · Patch
• https://security-tracker.debian.org/tracker/CVE-2023-52996 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52996 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-52996 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-52996 · Vendor Advisory
• https://git.kernel.org/stable/c/ca3cf947760de050d558293002ad3e7f4b8745d2 · Patch
• https://bdu.fstec.ru/vul/2025-06260 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-52996 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-52996 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-52996 · Security Note