CVE-2021-43395
"Oracle Solaris tmpfs Deadlock and Kernel Panic Vulnerability"
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.
INFO
Published Date :
Dec. 26, 2022, 6:15 a.m.
Last Modified :
Aug. 8, 2023, 2:21 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2021-43395
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-43395.
| URL | Resource |
|---|---|
| http://www.tribblix.org/relnotes.html | Release Notes Third Party Advisory |
| https://github.com/illumos/illumos-gate/blob/069654420de4aade43c63c43cd2896e66945fc8a/usr/src/uts/common/fs/tmpfs/tmp_vnops.c | Exploit Third Party Advisory |
| https://github.com/illumos/illumos-gate/blob/b3403853e80914bd0aade9b5b605da4878078173/usr/src/uts/common/fs/tmpfs/tmp_dir.c | Exploit Third Party Advisory |
| https://github.com/illumos/illumos-gate/commit/f859e7171bb5db34321e45585839c6c3200ebb90 | Patch Third Party Advisory |
| https://illumos.topicbox.com/groups/developer/T1c9e4f27f8c2f959/security-heads-up-illumos14424 | Vendor Advisory |
| https://jgardner100.wordpress.com/2022/01/20/security-heads-up/ | Third Party Advisory |
| https://kebe.com/blog/?p=505 | Third Party Advisory |
| https://www.illumos.org/issues/14424 | Issue Tracking Patch Vendor Advisory |
| https://www.oracle.com/security-alerts/cpujan2022.html | Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-43395 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-43395 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Aug. 08, 2023
Action Type Old Value New Value Changed CWE NVD-CWE-noinfo CWE-667 -
Initial Analysis by [email protected]
Jan. 05, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.tribblix.org/relnotes.html No Types Assigned http://www.tribblix.org/relnotes.html Release Notes, Third Party Advisory Changed Reference Type https://github.com/illumos/illumos-gate/blob/069654420de4aade43c63c43cd2896e66945fc8a/usr/src/uts/common/fs/tmpfs/tmp_vnops.c No Types Assigned https://github.com/illumos/illumos-gate/blob/069654420de4aade43c63c43cd2896e66945fc8a/usr/src/uts/common/fs/tmpfs/tmp_vnops.c Exploit, Third Party Advisory Changed Reference Type https://github.com/illumos/illumos-gate/blob/b3403853e80914bd0aade9b5b605da4878078173/usr/src/uts/common/fs/tmpfs/tmp_dir.c No Types Assigned https://github.com/illumos/illumos-gate/blob/b3403853e80914bd0aade9b5b605da4878078173/usr/src/uts/common/fs/tmpfs/tmp_dir.c Exploit, Third Party Advisory Changed Reference Type https://github.com/illumos/illumos-gate/commit/f859e7171bb5db34321e45585839c6c3200ebb90 No Types Assigned https://github.com/illumos/illumos-gate/commit/f859e7171bb5db34321e45585839c6c3200ebb90 Patch, Third Party Advisory Changed Reference Type https://illumos.topicbox.com/groups/developer/T1c9e4f27f8c2f959/security-heads-up-illumos14424 No Types Assigned https://illumos.topicbox.com/groups/developer/T1c9e4f27f8c2f959/security-heads-up-illumos14424 Vendor Advisory Changed Reference Type https://jgardner100.wordpress.com/2022/01/20/security-heads-up/ No Types Assigned https://jgardner100.wordpress.com/2022/01/20/security-heads-up/ Third Party Advisory Changed Reference Type https://kebe.com/blog/?p=505 No Types Assigned https://kebe.com/blog/?p=505 Third Party Advisory Changed Reference Type https://www.illumos.org/issues/14424 No Types Assigned https://www.illumos.org/issues/14424 Issue Tracking, Patch, Vendor Advisory Changed Reference Type https://www.oracle.com/security-alerts/cpujan2022.html No Types Assigned https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:illumos:illumos:*:*:*:*:*:*:*:* versions up to (excluding) 2022-01-18 Added CPE Configuration OR *cpe:2.3:o:omniosce:omnios:r151038:*:*:*:community:*:*:* Added CPE Configuration OR *cpe:2.3:o:openindiana:openindiana:hipster_2021.04:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:joyent:smartos:20210923:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:oracle:solaris:10:*:*:*:*:*:*:* *cpe:2.3:o:oracle:solaris:11:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-43395 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-43395
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} 0.01%
score
0.29726
percentile