CVE Database
/

CVE-2021-3939

Back to search

CVE-2021-3939

Published: Nov 17, 2021

Modified: Sep 16, 2024

PUBLISHED

CVSS v3.1

7.8

HIGH

Description

Ubuntu-specific modifications to accountsservice (in patch file debian/patches/0010-set-language.patch) caused the fallback_locale variable, pointing to static storage, to be freed, in the user_change_language_authorized_cb function. This is reachable via the SetLanguage dbus function. This is fixed in versions 0.6.55-0ubuntu12~20.04.5, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1.

VendorProductVersions

Ubuntu

accountsservice

affected
0.6.55-0ubuntu12~20.04 - < 0.6.55-0ubuntu12~20.04.5
affected
0.6.55-0ubuntu13 - < 0.6.55-0ubuntu13.3
affected
0.6.55-0ubuntu14 - < 0.6.55-0ubuntu14.1

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now