CVE-2021-3939

HighCVSS 7.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-590 CWE-763

Affected software

Vendor	Product	Versions
Ubuntu	accountsservice	>= 0.6.55-0ubuntu12~20.04, < 0.6.55-0ubuntu12~20.04.5; >= 0.6.55-0ubuntu13, < 0.6.55-0ubuntu13.3; >= 0.6.55-0ubuntu14, < 0.6.55-0ubuntu14.1

References

Timeline

Published: Nov 17, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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