VulnerabilityModified
CVE-2021-3982
Linux distributions using CAP_SYS_NICE for gnome-shell may be exposed to a privilege escalation issue.
MEDIUM 5.5EPSS 0.29%
Does this matter?
Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.29% probability · 21th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-273
- Affected
- gnome/gnome-shell
- Source
- secalert@redhat.com
References
- https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284Issue Tracking, Patch, Third Party Advisory
- https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060Issue Tracking, Patch, Third Party Advisory
- https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284Issue Tracking, Patch, Third Party Advisory
- https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060Issue Tracking, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.