CVE-2021-3982: Medium severity gnome-shell vulnerability
Linux distributions using CAPSYSNICE for gnome-shell may be exposed to a privilege escalation issue. An attacker, with low privilege permissions, may take advantage of the way CAPSYSNICE 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.
Affected Software
Remediation
Patch Available
Patch Available
Event History
Frequently Asked Questions
What is CVE-2021-3982?
CVE-2021-3982 is a vulnerability in Linux distributions using CAP_SYS_NICE for gnome-shell that may allow for privilege escalation.
How does CVE-2021-3982 affect Linux distributions?
Linux distributions using CAP_SYS_NICE for gnome-shell are affected by CVE-2021-3982, which may result in a privilege escalation issue.
What is the severity of CVE-2021-3982?
The severity of CVE-2021-3982 is medium, with a severity value of 5.5.
How can an attacker exploit CVE-2021-3982?
An attacker with low privilege permissions can exploit CVE-2021-3982 by taking advantage of the way CAP_SYS_NICE is implemented and loading code to increase its process scheduler priority.
Are there any references for CVE-2021-3982?
Yes, you can find references for CVE-2021-3982 at the following links: [link1](https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284), [link2](https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060).