A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc.
Published 2021-03-22 09:15:14
Updated 2022-06-30 18:59:23
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Denial of service

Exploit prediction scoring system (EPSS) score for CVE-2021-28964

Probability of exploitation activity in the next 30 days: 0.05%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 12 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-28964

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
1.9
LOW AV:L/AC:M/Au:N/C:N/I:N/A:P
3.4
2.9
NIST
4.7
MEDIUM CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
1.0
3.6
NIST

CWE ids for CVE-2021-28964

References for CVE-2021-28964

Products affected by CVE-2021-28964

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