CVE-2021-3982
GNOME Shell CAP_SYS_NICE Privilege Escalation Vulnerability
Description
Linux distributions using CAP_SYS_NICE for gnome-shell may be exposed to a privilege escalation issue. An attacker, with low privilege permissions, may take advantage of the way CAP_SYS_NICE is currently implemented and eventually load code to increase its process scheduler priority leading to possible DoS of other services running in the same machine.
INFO
Published Date :
April 29, 2022, 5:15 p.m.
Last Modified :
Feb. 3, 2023, 1:57 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
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-2021-3982.
| URL | Resource |
|---|---|
| https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284 | Issue Tracking Patch Third Party Advisory |
| https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060 | Issue Tracking 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-2021-3982 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3982 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 -
Modified Analysis by [email protected]
Feb. 03, 2023
Action Type Old Value New Value Changed Reference Type https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284 No Types Assigned https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060 No Types Assigned https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060 Issue Tracking, Patch, Third Party Advisory -
CVE Modified by [email protected]
Nov. 28, 2022
Action Type Old Value New Value Removed Reference https://bugzilla.redhat.com/show_bug.cgi?id=2024174 [Issue Tracking, Third Party Advisory] Removed Reference https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4711 [Exploit, Issue Tracking, Vendor Advisory] Added Reference https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284 [No Types Assigned] Added Reference https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060 [No Types Assigned] -
Initial Analysis by [email protected]
May. 11, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2024174 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2024174 Issue Tracking, Third Party Advisory Changed Reference Type https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4711 No Types Assigned https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4711 Exploit, Issue Tracking, Vendor Advisory Added CWE NIST CWE-273 Added CPE Configuration OR *cpe:2.3:a:gnome:gnome-shell:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3982 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-2021-3982
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.10701
percentile