PT-2025-37642 · Linux+2 · Linux Kernel+2

Published 2023-01-01 · Updated 2026-03-14 · CVE-2023-53200

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 The Linux kernel contains an issue where a percpu counter block can be leaked on an error path when creating a new network namespace. This leak occurs during the allocation of the counter block in functions like translate table and xt register table, specifically when xt register table fails after the counter block has been allocated. The probability of hitting this error path is considered low, as it requires a failure in xt register table during network namespace creation.

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:2026-05869

CVE-2023-53200

Affected Products

Astra Linux

Debian

Linux Kernel

References · 20

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53200.json · Exploit
• https://ubuntu.com/security/CVE-2023-53200 · Vendor Advisory
• https://git.kernel.org/stable/c/512b6c4b83c91d007301ea7d7f095d16c3aceacd · Patch
• https://security-tracker.debian.org/tracker/CVE-2023-53200 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53200 · Security Note
• https://git.kernel.org/stable/c/0af8c09c896810879387decfba8c942994bb61f5 · Patch
• https://bdu.fstec.ru/vul/2026-05869 · Security Note
• https://git.kernel.org/stable/c/e306dbee4c98025a9326386023a12ef4d887e9d1 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53200 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53200 · Vendor Advisory
• https://git.kernel.org/stable/c/3cc9610a87b7dde82f7360dd4eb6c2c27940ed57 · Patch
• https://osv.dev/vulnerability/CVE-2023-53200 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2023-53200 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53200 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2023-53200 · Vendor Advisory