CVE-2021-43395
- State
- Published
- Severity
- 5.5 Medium
- Published
- Dec 26, 2022
- Updated
- Apr 14, 2025
- Reserved
- Nov 4, 2021
Description
An issue was discovered in illumos before f859e7171bb5db34321e45585839c6c3200ebb90, OmniOS Community Edition r151038, OpenIndiana Hipster 2021.04, and SmartOS 20210923. A local unprivileged user can cause a deadlock and kernel panic via crafted rename and rmdir calls on tmpfs filesystems. Oracle Solaris 10 and 11 is also affected.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
Weaknesses
- CWE-667 Improper Locking
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://github.com/illumos/illumos-gate/blob/069654420de4aade43c63c43cd2896e66945fc8a/usr/src/uts/common/fs/tmpfs/tmp_vnops.c
- https://github.com/illumos/illumos-gate/blob/b3403853e80914bd0aade9b5b605da4878078173/usr/src/uts/common/fs/tmpfs/tmp_dir.c
- https://www.oracle.com/security-alerts/cpujan2022.html
- http://www.tribblix.org/relnotes.html
- https://jgardner100.wordpress.com/2022/01/20/security-heads-up/
- https://illumos.topicbox.com/groups/developer/T1c9e4f27f8c2f959/security-heads-up-illumos14424
- https://www.illumos.org/issues/14424
- https://github.com/illumos/illumos-gate/commit/f859e7171bb5db34321e45585839c6c3200ebb90
- https://kebe.com/blog/?p=505
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