CVE-2021-3982
Last modified
CVE-2021-3982 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.29% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gnome | Gnome-Shell | All versions |
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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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