VULNERABILITY INTELLIGENCE

CVE-2021-3982

CVSS score5.5 MEDIUM
EPSS probability0.29%
CISA KEVNot currently listed
Published2022-04-29
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • secalert@redhat.com: CWE-273
  • nvd@nist.gov: CWE-273

Primary references