Free of static data in accountsservice
CVE-2021-3939
7.8HIGH
What is 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.
Affected Version(s)
accountsservice 0.6.55-0ubuntu12~20.04 < 0.6.55-0ubuntu12~20.04.5
accountsservice 0.6.55-0ubuntu13 < 0.6.55-0ubuntu13.3
accountsservice 0.6.55-0ubuntu14 < 0.6.55-0ubuntu14.1