PT-2024-11257 · Linux+2 · Linux Kernel+2

Hulk Robot + 1 · Published 2021-06-08 · Updated 2024-12-30 · CVE-2021-47250

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 has been identified in the Linux kernel, specifically in the netlbl cipsov4 add std function. The memory leak occurs because the memory allocated for doi def->map.std is not freed. This issue was reported by syzkaller, a tool used for fuzz testing the Linux kernel. The memory leak can be freed in the cipso v4 doi free function, which is responsible for freeing the cipso DOI resource.

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

BDU:2025-07376

CVE-2021-47250

SUSE-SU-2024:1979-1

SUSE-SU-2024:1983-1

SUSE-SU-2024:2184-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 459

• https://osv.dev/vulnerability/SUSE-SU-2024:1983-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-47250 · Vendor Advisory
• https://git.kernel.org/stable/c/212166510582631994be4f4b3fe15e10a03c1dd4 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1979-1 · Vendor Advisory
• https://git.kernel.org/stable/c/d612c3f3fae221e7ea736d196581c2217304bbbc · Patch
• https://git.kernel.org/stable/c/6dcea66d3bb519b426282588f38e884e07893c1f · Patch
• https://git.kernel.org/stable/c/0ffb460be3abac86f884a8c548bb02724ec370f4 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-47250 · Security Note
• https://bdu.fstec.ru/vul/2025-07376 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:2184-1 · Vendor Advisory
• https://git.kernel.org/stable/c/deeeb65c6ee404f2d1fb80b38b2730645c0f4663 · Patch
• https://ubuntu.com/security/CVE-2021-47250 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-47250 · Vendor Advisory
• https://git.kernel.org/stable/c/086e92b1d68c6338535f715aad173f8cf4bfbc8c · Patch
• https://git.kernel.org/stable/c/5340858147e3dc60913fb3dd0cbb758ec4a26e66 · Patch