CVE-2021-3939
7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: NVD
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.
Affected (6)
Products: Canonical: Accountsservice, Ubuntu Linux
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| From 0.6.55-0ubuntu12\~20.04 to 0.6.55-0ubuntu12\~20.05 |
Configuration B
| Vulnerable Software | Affected Versions |
|---|---|
| Version 20.04 |
Related CWEs
CWE-590
Free of Memory not on the Heap
The product calls free() on a pointer to memory that was not allocated using associated heap allocation functions such as malloc(), calloc(), or realloc().
CWE-763
Release of Invalid Pointer or Reference
The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly.
References (6)
Source: security@ubuntu.com
Source: security@ubuntu.com
Broken Link
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Timeline
No history available yet.