CVE-2021-3982

MediumCVSS 5.5/10Last modified Jun 17, 2026

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

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-273

Affected software

VendorProductVersions
n/agnome-shellgnome-shell downstream versions using CAP_SYS_NICE

References

Timeline

Published
Apr 29, 2022
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-398207.8Adobe InDesign versions 16.3 (and earlier), and 16.3.1 (and earlier) is affected by an Out-of-bounds Write vulnerability due to insecure hanCVE-2021-398217.8Adobe InDesign versions 16.3 (and earlier), and 16.3.1 (and earlier) are affected by an out-of-bounds read vulnerability that could result iCVE-2021-398227.8Adobe InDesign versions 16.3 (and earlier), and 16.3.1 (and earlier) are affected by an out-of-bounds write vulnerability that could result CVE-2021-398237.8Adobe svg-native-viewer 8182d14dfad5d1e10f53ed830328d7d9a3cfa96d and earlier versions are affected by a heap buffer overflow vulnerability dCVE-2021-398247.8Adobe Premiere Elements version 2021.2235820 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a maCVE-2021-398257.8Photoshop Elements versions 2021 build 19.0 (20210304.m.156367) (and earlier) are affected by an out-of-bounds write vulnerability that coulCVE-2021-398268.6Adobe Digital Editions 4.5.11.187646 (and earlier) are affected by an arbitrary command execution vulnerability. An authenticated attacker cCVE-2021-398276.5Adobe Digital Editions 4.5.11.187646 (and earlier) are affected by an arbitrary file write vulnerability in the Digital Editions installer. CVE-2021-398286.5Adobe Digital Editions 4.5.11.187646 (and earlier) are affected by a privilege escalation vulnerability in the Digital Editions installer. ACVE-2021-398297.8Adobe Framemaker versions 2019 Update 8 (and earlier) and 2020 Release Update 2 (and earlier) are affected by an out-of-bounds write vulneraCVE-2021-39836.1kimai2 is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2021-398307.8Adobe Framemaker versions 2019 Update 8 (and earlier) and 2020 Release Update 2 (and earlier) are affected by a memory corruption vulnerabil
CVE-2021-3982: Medium severity, CVSS 5.5 | Vulnix