PT-2024-11113 · Linux+1 · Linux Kernel+1

Colin Ian King + 2 · Published 2021-05-12 · Updated 2024-12-09 · CVE-2021-47009

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 trusted key module. The issue arises from two error return paths that fail to free the allocated object td, resulting in a memory leak. This leak is addressed by ensuring that the error return path securely frees td. The fix also resolves a clang scan-build warning related to a potential memory leak in the trusted tpm1.c file.

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:2025-06539

CVE-2021-47009

OPENSUSE-SU-2024_1489-1

SUSE-SU-2024:1465-1

SUSE-SU-2024:1489-1

Affected Products

Linux Kernel

Suse

References · 347

• https://git.kernel.org/stable/c/83a775d5f9bfda95b1c295f95a3a041a40c7f321 · Patch
• https://git.kernel.org/stable/c/1c4031014106aff48e1e686e40101c31eab5d44c · Patch
• https://cve.org/CVERecord?id=CVE-2021-47009 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47009 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1489-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47009 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47009 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47009 · Security Note
• https://git.kernel.org/stable/c/31c9a4b24d86cbb36ff0d7a085725a3b4f0138c8 · Patch
• https://bdu.fstec.ru/vul/2025-06539 · Security Note
• https://osv.dev/vulnerability/CVE-2021-47009 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-47009 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1465-1 · Vendor Advisory
• https://git.kernel.org/stable/c/3e24fbd37e72e8a67b74991970fecc82d14f57af · Patch
• https://bugzilla.suse.com/1221990 · Note