CVE-2021-47009

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47009
In the Linux kernel, the following vulnerability has been resolved: KEYS: trusted: Fix memory leak on object td Two error return paths are neglecting to free allocated object td, causing a memory leak. Fix this by returning via the error return path that securely kfree's td. Fixes clang scan-build warning: security/keys/trusted-keys/trusted_tpm1.c:496:10: warning: Potential memory leak [unix.Malloc]

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/1c4031014106aff48e1e686e40101c31eab5d44c Patch
https://git.kernel.org/stable/c/31c9a4b24d86cbb36ff0d7a085725a3b4f0138c8 Patch
https://git.kernel.org/stable/c/3e24fbd37e72e8a67b74991970fecc82d14f57af Patch
https://git.kernel.org/stable/c/83a775d5f9bfda95b1c295f95a3a041a40c7f321 Patch
https://git.kernel.org/stable/c/1c4031014106aff48e1e686e40101c31eab5d44c Patch
https://git.kernel.org/stable/c/31c9a4b24d86cbb36ff0d7a085725a3b4f0138c8 Patch
https://git.kernel.org/stable/c/3e24fbd37e72e8a67b74991970fecc82d14f57af Patch
https://git.kernel.org/stable/c/83a775d5f9bfda95b1c295f95a3a041a40c7f321 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.12:rc1:*:*:*:*:*:*
History

09 Dec 2024, 18:24

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.12:rc1:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-401
References () https://git.kernel.org/stable/c/1c4031014106aff48e1e686e40101c31eab5d44c - () https://git.kernel.org/stable/c/1c4031014106aff48e1e686e40101c31eab5d44c - Patch
References () https://git.kernel.org/stable/c/31c9a4b24d86cbb36ff0d7a085725a3b4f0138c8 - () https://git.kernel.org/stable/c/31c9a4b24d86cbb36ff0d7a085725a3b4f0138c8 - Patch
References () https://git.kernel.org/stable/c/3e24fbd37e72e8a67b74991970fecc82d14f57af - () https://git.kernel.org/stable/c/3e24fbd37e72e8a67b74991970fecc82d14f57af - Patch
References () https://git.kernel.org/stable/c/83a775d5f9bfda95b1c295f95a3a041a40c7f321 - () https://git.kernel.org/stable/c/83a775d5f9bfda95b1c295f95a3a041a40c7f321 - Patch
First Time Linux linux Kernel
Linux

21 Nov 2024, 06:35

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/1c4031014106aff48e1e686e40101c31eab5d44c - () https://git.kernel.org/stable/c/1c4031014106aff48e1e686e40101c31eab5d44c -
References () https://git.kernel.org/stable/c/31c9a4b24d86cbb36ff0d7a085725a3b4f0138c8 - () https://git.kernel.org/stable/c/31c9a4b24d86cbb36ff0d7a085725a3b4f0138c8 -
References () https://git.kernel.org/stable/c/3e24fbd37e72e8a67b74991970fecc82d14f57af - () https://git.kernel.org/stable/c/3e24fbd37e72e8a67b74991970fecc82d14f57af -
References () https://git.kernel.org/stable/c/83a775d5f9bfda95b1c295f95a3a041a40c7f321 - () https://git.kernel.org/stable/c/83a775d5f9bfda95b1c295f95a3a041a40c7f321 -
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: LLAVES: confiable: corrige la pérdida de memoria en el objeto td. Dos rutas de retorno de error no liberan el objeto asignado td, lo que provoca una pérdida de memoria. Solucione este problema regresando a través de la ruta de retorno de error que segura el td. Corrige la advertencia de clang scan-build: seguridad/claves/trusted-keys/trusted_tpm1.c:496:10: advertencia: Posible pérdida de memoria [unix.Malloc]

28 Feb 2024, 09:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-02-28 09:15

Updated : 2024-12-09 18:24

NVD link : CVE-2021-47009

Mitre link : CVE-2021-47009

CVE.ORG link : CVE-2021-47009

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime