CVE-2021-47351

  1. Yack CVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47351

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

I

n the Linux kernel, the following vulnerability has been resolved: ubifs: Fix races between xattr_{set|get} and listxattr operations UBIFS may occur some problems with concurrent xattr_{set|get} and listxattr operations, such as assertion failure, memory corruption, stale xattr value[1]. Fix it by importing a new rw-lock in @ubifs_inode to serilize write operations on xattr, concurrent read operations are still effective, just like ext4. [1] https://lore.kernel.org/linux-mtd/[email protected]

References
Link Resource
https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6 Patch
https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08 Patch
https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82 Patch
https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386 Patch
https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5 Patch
https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6 Patch
https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08 Patch
https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82 Patch
https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386 Patch
https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5 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:*:*:*:*:*:*:*:*
History

12 May 2025, 19:55

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6 - () https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6 - Patch
References () https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08 - () https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08 - Patch
References () https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82 - () https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82 - Patch
References () https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386 - () https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386 - Patch
References () https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5 - () https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5 - Patch
CWE CWE-787
CWE-617
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5

21 Nov 2024, 06:35

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ubifs: corrige ejecucións entre las operaciones xattr_{set|get} y listxattr. UBIFS puede producir algunos problemas con las operaciones xattr_{set|get} y listxattr simultáneas, como fallas de aserción y corrupción de memoria. , valor xattr obsoleto [1]. Solucónelo importando un nuevo rw-lock en @ubifs_inode para serializar las operaciones de escritura en xattr, las operaciones de lectura simultáneas siguen siendo efectivas, al igual que ext4. [1] https://lore.kernel.org/linux-mtd/[email protected]
References () https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6 - () https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6 -
References () https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08 - () https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08 -
References () https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82 - () https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82 -
References () https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386 - () https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386 -
References () https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5 - () https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5 -

21 May 2024, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-21 15:15

Updated : 2025-05-12 19:55

NVD link : CVE-2021-47351

Mitre link : CVE-2021-47351

CVE.ORG link : CVE-2021-47351

JSON object : View

Products Affected

linux

CWE
CWE-617

Reachable Assertion

CWE-787

Out-of-bounds Write