CVE-2021-45868
MEDIUM 5.5EPSS 1.3%
In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a corrupted quota file.
- CVSS v3.1 NVD
- 5.5 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS v2.0 NVD
- 4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P - EPSS
- 1.34% chance of exploitation in the next 30 days, 71st percentile
- Published
- 2022-03-18
- Updated
- 2024-08-04
Proof-of-concept exploits (2)
- https://www.openwall.com/lists/oss-security/2022/03/17/1
- https://www.openwall.com/lists/oss-security/2022/03/17/2
Security advisories
- https://bugzilla.kernel.org/show_bug.cgi?id=214655
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.3
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9bf3d203312…
- https://security.netapp.com/advisory/ntap-20220419-0003