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CVE-2021-43395

Published: Dec 26, 2022Updated: Apr 14, 2025 Sources: CVE List NVD BDUCWE-667
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.3%
Top 76.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch 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.

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

illumosillumos
On-prem
Operating Systems / unix-bsd
omniosomniosce
On-prem
Operating Systems / unix-bsd
openindianaopenindiana
On-prem
Operating Systems / unix-bsd
smartosjoyent
Mixed
Operating Systems / unix-bsd
solarisoracle
OS
Operating Systems / unix-bsd
illumososs-projectOperating Systemsaka illumos
omniosceoss-projectOperating Systemsaka omniosce
openindianaoss-projectUSOperating Systems
joyentcommercialUSOperating Systemsaka joyent, smartos, joyent smartos
oraclecommercialUSDatabasesaka oracle corp.
and 2 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

http://www.tribblix.org/relnotes.html
tribblix.org
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
and 8 more references View all →

Timeline

Published
Dec 26, 2022
Last Updated
Apr 14, 2025

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