PT-2025-17220 · Linux+3 · Linux Kernel+3

Published 2023-05-09 · Updated 2025-05-21 · CVE-2021-47671

Positive Technologies (AI Summary)

CVSS v3.1

3.3

Low

Base vector

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

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, specifically in the es58x rx err msg() function. This occurs when can->do set mode() fails, causing the function to return without freeing the previously allocated skb, resulting in a memory leak. The issue was discovered using GCC -fanalyzer.

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

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2021-47671

OPENSUSE-SU-2025_01620-1

OPENSUSE-SU-2025_01627-1

OPENSUSE-SU-2025_01640-1

RHSA-2023:2458

RHSA-2023_2458

SUSE-SU-2025:01620-1

SUSE-SU-2025:01627-1

SUSE-SU-2025:01640-1

SUSE-SU-2025:1573-1

SUSE-SU-2025_01620-1

SUSE-SU-2025_01627-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Suse

References · 119

• https://cve.org/CVERecord?id=CVE-2021-47671 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:01640-1 · Vendor Advisory
• https://git.kernel.org/stable/c/7eb0881aec26099089f12ae850aebd93190b1dfe · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47671 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47671 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47671 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1573-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-47671 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:01620-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47671 · Security Note
• https://osv.dev/vulnerability/CVE-2021-47671 · Vendor Advisory
• https://git.kernel.org/stable/c/4f389e1276a5389c92cef860c9fde8e1c802a871 · Patch
• https://git.kernel.org/stable/c/d9447f768bc8c60623e4bb3ce65b8f4654d33a50 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:01627-1 · Vendor Advisory
• https://bugzilla.suse.com/1240553 · Note