Vulnerability Monitor

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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.

Published

2021-11-17T04:15:06.977

Last Modified

2024-11-21T06:22:49.100

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.9

Impact Score

10.0

Weaknesses
  • Type: Secondary
    CWE-590
  • Type: Primary
    CWE-763
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application canonical accountsservice < 0.6.55-0ubuntu12\~20.05 Yes
Application canonical accountsservice < 0.6.55-0ubuntu13.3 Yes
Application canonical accountsservice < 0.6.55-0ubuntu14.1 Yes
Operating System canonical ubuntu_linux 20.04 Yes
Operating System canonical ubuntu_linux 21.04 Yes
Operating System canonical ubuntu_linux 21.10 Yes
References