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Ubuntu: USN-5149-1 (CVE-2021-3939): AccountsService vulnerability

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Ubuntu: USN-5149-1 (CVE-2021-3939): AccountsService vulnerability

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
11/17/2021
Created
03/29/2023
Added
03/22/2023
Modified
03/22/2023

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.

Solution(s)

  • ubuntu-upgrade-accountsservice
  • ubuntu-upgrade-libaccountsservice0

References

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