PT-2025-18814 · Linux+4 · Linux Kernel+4

Published 2023-03-03 · Updated 2026-01-28 · CVE-2023-53050

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 memory leak issue has been identified in the Linux kernel related to thunderbolt, specifically in the margining functionality for usb4. The memory for usb4->margining needs to be released for the upstream port of the router, even when the debugfs directory is released with the router device removal. This issue has been resolved.

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

Exploit

DoS

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

ALSA-2025_16880

BDU:2025-06769

CESA-2023_7077

CVE-2023-53050

RHSA-2023:6583

RHSA-2023:7077

RHSA-2023_6583

RHSA-2023_7077

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Red Os

References · 21

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53050.json · Exploit
• https://git.kernel.org/stable/c/acec726473822bc6b585961f4ca2a11fa7f28341 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53050 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53050 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53050 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53050 · Security Note
• https://git.kernel.org/stable/c/0b357b360e671688f9bf38ff94300515b68bc247 · Patch
• https://bdu.fstec.ru/vul/2025-06769 · Security Note
• https://git.kernel.org/stable/c/f390095bbd131ec2dfb29792d9f6fd0f0656bfc0 · Patch
• https://ubuntu.com/security/CVE-2023-53050 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53050 · Security Note
• https://osv.dev/vulnerability/CVE-2023-53050 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53050 · Vendor Advisory
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://lore.kernel.org/linux-cve-announce/2025050206-CVE-2023-53050-6072@gregkh · Note