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CVE-2021-43395

Published: Dec 26, 2022Updated: Apr 14, 2025 Sources: CVE List NVD BDUCWE-667
5.5MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 75.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-667

Affected Products

illumos
oss-project
illumosOn-prem
Operating Systems / unix-bsd
omniosce
oss-project
omniosOn-prem
Operating Systems / unix-bsd
openindiana
oss-project·US
openindianaOn-prem
Operating Systems / unix-bsd
joyent
commercial·USaka joyent smartos, smartos
smartosMixed
Operating Systems / unix-bsd
Oracle Corp.
commercial·USaka oracle
SolarisOn-premOS
Operating Systems / unix-bsd
and 2 more affected products View all →

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://github.com/illumos/illumos-gate/blob/069654420de4aade43c63c43cd2896e66945fc8a/usr/src/uts/common/fs/tmpfs/tmp_vnops.c
github.com
https://github.com/illumos/illumos-gate/blob/b3403853e80914bd0aade9b5b605da4878078173/usr/src/uts/common/fs/tmpfs/tmp_dir.c
github.com
https://www.oracle.com/security-alerts/cpujan2022.html
oracle.com
and 8 more references View all →

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