| Name | CVE-2021-3939 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| accountsservice (PTS) | jessie | 0.6.37-3 | fixed |
| stretch | 0.6.43-1 | fixed | |
| buster | 0.6.45-2 | fixed | |
| bullseye | 0.6.55-3 | fixed | |
| bookworm | 22.08.8-6 | fixed | |
| sid, trixie | 23.13.9-6.1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| accountsservice | source | (unstable) | (not affected) |
- accountsservice <not-affected> (Ubuntu specific patch)
https://ubuntu.com/security/CVE-2021-3939