CVE-2021-3982

CVSS V2 Low 2.1 CVSS V3 Medium 5.5
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.
Overview
  • CVE ID
  • CVE-2021-3982
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-04-29T17:15:19
  • Last Modified Date
  • 2023-02-03T01:57:17
Weakness Enumerations
CWE URL
CWE-273 http://cwe.mitre.org/data/definitions/273.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:gnome:gnome-shell:-:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 2.1
  • Severity
  • LOW
  • Exploitability Score
  • 3.9
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2024174
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4711
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-3982
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3982
History
Created Old Value New Value Data Type Notes
2022-05-08 06:20:17 Added to TrackCVE
2022-12-06 14:31:03 Modified Undergoing Analysis Vulnerability Status updated
2023-02-03 02:12:04 2023-02-03T01:57:17 CVE Modified Date updated
2023-02-03 02:12:04 Undergoing Analysis Analyzed Vulnerability Status updated