Vulnerability Details : CVE-2021-47351

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/20200630130438.141649-1-houtao1@huawei.com
Published 2024-05-21 14:35:56
Updated 2025-05-12 19:55:22
Source Linux
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Products affected by CVE-2021-47351

Exploit prediction scoring system (EPSS) score for CVE-2021-47351

EPSS FAQ
0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 10 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-47351

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.5
 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1.8
3.6
 NIST 2025-05-12

CWE ids for CVE-2021-47351

  • The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.
    Assigned by: nvd@nist.gov (Primary)
  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-47351

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