Vulnerability Details CVE-2021-43395
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 1.3%
CVSS Severity
CVSS v3 Score 5.5
References
- http://www.tribblix.org/relnotes.html
- 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://github.com/illumos/illumos-gate/commit/f859e7171bb5db34321e45585839c6c3200ebb90
- https://illumos.topicbox.com/groups/developer/T1c9e4f27f8c2f959/security-heads-up-illumos14424
- https://jgardner100.wordpress.com/2022/01/20/security-heads-up/
- https://kebe.com/blog/?p=505
- https://www.illumos.org/issues/14424
- https://www.oracle.com/security-alerts/cpujan2022.html
- http://www.tribblix.org/relnotes.html
- 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://github.com/illumos/illumos-gate/commit/f859e7171bb5db34321e45585839c6c3200ebb90
- https://illumos.topicbox.com/groups/developer/T1c9e4f27f8c2f959/security-heads-up-illumos14424
- https://jgardner100.wordpress.com/2022/01/20/security-heads-up/
- https://kebe.com/blog/?p=505
- https://www.illumos.org/issues/14424
- https://www.oracle.com/security-alerts/cpujan2022.html
Products affected by CVE-2021-43395
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cpe:2.3:o:illumos:illumos:-
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cpe:2.3:o:illumos:illumos:2020-10-22
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cpe:2.3:o:joyent:smartos:20210923
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cpe:2.3:o:omniosce:omnios:r151038
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cpe:2.3:o:openindiana:openindiana:hipster_2021.04
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cpe:2.3:o:oracle:solaris:10
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cpe:2.3:o:oracle:solaris:11