CVE-2021-47351
Linux UBIFS Race Condition Vulnerability
Description
In 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]
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
May 12, 2025, 7:55 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47351.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47351 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47351 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
May. 12, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-787 Added CWE CWE-617 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.51 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.18 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.13 up to (excluding) 5.13.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.27 up to (excluding) 5.4.133 Added Reference Type CVE: https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5 Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6 Added Reference https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08 Added Reference https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82 Added Reference https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386 Added Reference https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 21, 2024
Action Type Old Value New Value Added Description In 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] Added Reference kernel.org https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47351 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47351
weaknesses.