CVE-2021-43395
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
29.7%
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.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| illumos | illumos | * | cpe:2.3:o:illumos:illumos:*:*:*:*:*:*:*:* |
| omniosce | omnios | r151038 | cpe:2.3:o:omniosce:omnios:r151038:*:*:*:community:*:*:* |
| openindiana | openindiana | hipster_2021.04 | cpe:2.3:o:openindiana:openindiana:hipster_2021.04:*:*:*:*:*:*:* |
| joyent | smartos | 20210923 | cpe:2.3:o:joyent:smartos:20210923:*:*:*:*:*:*:* |
| oracle | solaris | 10 | cpe:2.3:o:oracle:solaris:10:*:*:*:*:*:*:* |
| oracle | solaris | 11 | cpe:2.3:o:oracle:solaris:11:*:*:*:*:*:*:* |
References
www.tribblix.org/relnotes.html
github.com/illumos/illumos-gate/blob/069654420de4aade43c63c43cd2896e66945fc8a/usr/src/uts/common/fs/tmpfs/tmp_vnops.c
github.com/illumos/illumos-gate/blob/b3403853e80914bd0aade9b5b605da4878078173/usr/src/uts/common/fs/tmpfs/tmp_dir.c
github.com/illumos/illumos-gate/commit/f859e7171bb5db34321e45585839c6c3200ebb90
illumos.topicbox.com/groups/developer/T1c9e4f27f8c2f959/security-heads-up-illumos14424
jgardner100.wordpress.com/2022/01/20/security-heads-up/
kebe.com/blog/?p=505
www.illumos.org/issues/14424
www.oracle.com/security-alerts/cpujan2022.html
Related
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
29.7%