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CVE-2021-3939

Published: 16 November 2021

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.

Priority

High

CVSS 3 base score: 7.8

Status

Package Release Status
accountsservice
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.10 (Impish Indri)
Released (0.6.55-0ubuntu14.1)
Ubuntu 21.04 (Hirsute Hippo)
Released (0.6.55-0ubuntu13.3)
Ubuntu 20.04 LTS (Focal Fossa)
Released (0.6.55-0ubuntu12~20.04.5)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(0.6.45-1ubuntu1.3)
Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable

Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable