CVE Vulnerability

CVE-2021-3939

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.

7.2 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1950149 Broken Link
https://ubuntu.com/security/notices/USN-5149-1 Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:canonical:accountsservice:*:*:*:*:*:*:*:*
cpe:2.3:a:canonical:accountsservice:*:*:*:*:*:*:*:*
cpe:2.3:a:canonical:accountsservice:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:21.04:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*
Information

Published : 2021-11-17 04:15

Updated : 2021-11-19 04:30

NVD link : CVE-2021-3939

Mitre link : CVE-2021-3939

Products Affected
No products.
CWE
CWE-763