Vulnerability Report

CVE-2021-3982

Title: Gnome Gnome-Shell Auth Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2021-3982.

CWE Category CWE-273
Published Date Apr 29, 2022
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 5.5 CVSS v3.1
Exploit Probability (EPSS)
0.29%

Vulnerability Summary

CVE-2021-3982: 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.

Impacted Vendors

G
gnome 1

Reference Links

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284 https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060 https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284 https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.5
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity LOW
2.1
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-3982 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.