PT-2025-13318 · Linux+2 · Linux Kernel+2

Published 2023-01-31 · Updated 2025-05-28 · CVE-2023-52942

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 vulnerability was found in the Linux kernel related to the cgroup/cpuset functionality. The issue arises from an incorrect check in the update parent subparts cpumask() function, which can lead to a situation where a parent cpuset is left with no effective CPU, even if there are tasks in the parent cpuset. This can result in a system panic. The problem is resolved by updating the check to fail the enabling of the partition if the parent's effective cpus is a subset of the child's cpus allowed.

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

Exploit

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2025-06253

CVE-2023-52942

RHSA-2024:0448

Affected Products

Astra Linux

Linux Kernel

Red Os

References · 20

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52942.json · Exploit
• https://git.kernel.org/stable/c/e5ae8803847b80fe9d744a3174abe2b7bfed222a · Patch
• https://bdu.fstec.ru/vul/2025-06253 · Security Note
• https://ubuntu.com/security/CVE-2023-52973 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52942 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-52942 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-52942 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-52942 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-52942 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52942 · Security Note
• https://git.kernel.org/stable/c/a2ab7f2cf5ef8f0c6212a246e681d1fe358cec1f · Patch
• https://osv.dev/vulnerability/BELL-CVE-2023-52942 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-52942 · Vendor Advisory
• https://git.kernel.org/linus/e5ae8803847b80fe9d744a3174abe2b7bfed222a · Note
• https://redos.red-soft.ru/support/secure/uyazvimosti/mnozhestvennye-uyazvimosti-kernel-lt-280525/?sphrase_id=1000202 · Note