Vulnerability · Published Apr 29, 2022 · Assigned by redhat
CVE-2021-3982
Medium 5.5
In plain English
A medium-severity security flaw in gnome-shell. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.3%top 78.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | gnome-shell | gnome-shell downstream versions using CAP_SYS_NICE |
Weakness: CWE-273