PT-2023-9488 · Linux+3 · Linux Kernel+3

Sili Luo · Published 2023-10-10 · Updated 2025-02-03 · CVE-2023-52483

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the mctp component in the Linux kernel, where route lookups are performed without proper read-side critical section locks, leading to potential preemption and parallel kfree issues. This could result in a use-after-free (UAF) condition when introducing a delay in the route lookup during simultaneous sendmsg and route deletion. The mctp route lookup and mctp route lookup null functions are affected.

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

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2024-07842

CVE-2023-52483

SUSE-SU-2024:2135-1

SUSE-SU-2025:20008-1

SUSE-SU-2025:20028-1

Affected Products

Astra Linux

Linux Kernel

Red Os

Suse

References · 1949

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52483.json · Exploit
• https://bdu.fstec.ru/vul/2024-07842 · Security Note
• https://osv.dev/vulnerability/CVE-2023-52483 · Vendor Advisory
• https://git.kernel.org/stable/c/5093bbfc10ab6636b32728e35813cbd79feb063c · Patch
• https://git.kernel.org/stable/c/2405f64a95a7a094eb24cba9bcfaffd1ea264de4 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:20028-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2135-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-52483 · Security Note
• https://git.kernel.org/stable/c/1db0724a01b558feb1ecae551782add1951a114a · Patch
• https://git.kernel.org/stable/c/6c52b12159049046483fdb0c411a0a1869c41a67 · Patch
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20241017SE16 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20008-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-52483 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-52483 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-52483 · Vendor Advisory