CVE-2021-47002

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47002
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix null pointer dereference in svc_rqst_free() When alloc_pages_node() returns null in svc_rqst_alloc(), the null rq_scratch_page pointer will be dereferenced when calling put_page() in svc_rqst_free(). Fix it by adding a null check. Addresses-Coverity: ("Dereference after null check")

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/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c Patch
https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336 Patch
https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10 Patch
https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742 Patch
https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c Patch
https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336 Patch
https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10 Patch
https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742 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:*:*:*:*:*:*:*:*
History

09 Dec 2024, 18:25

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c - () https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c - Patch
References () https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336 - () https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336 - Patch
References () https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10 - () https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10 - Patch
References () https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742 - () https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742 - Patch
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-476
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

21 Nov 2024, 06:35

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c - () https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c -
References () https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336 - () https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336 -
References () https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10 - () https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10 -
References () https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742 - () https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742 -

05 Jul 2024, 08:15

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: SUNRPC: corrige la desreferencia del puntero nulo en svc_rqst_free() Cuando alloc_pages_node() devuelve nulo en svc_rqst_alloc(), el puntero nulo rq_scratch_page será desreferenciado al llamar a put_page() en svc_rqst_free(). Solucionarlo agregando una marca nula. Direcciones-Cobertura: ("Desreferencia después de verificación nula")
References
  • () https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336 -

28 Feb 2024, 09:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-02-28 09:15

Updated : 2024-12-09 18:25

NVD link : CVE-2021-47002

Mitre link : CVE-2021-47002

CVE.ORG link : CVE-2021-47002

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference