CVE-2021-3939 (GCVE-0-2021-3939)

Vulnerability from cvelistv5 – Published: 2021-11-17 03:15 – Updated: 2024-09-16 18:02
VLAI?
Summary
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.
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-590 - Free of Memory not on the Heap
Assigner
References
Impacted products
Vendor Product Version
Ubuntu accountsservice Affected: 0.6.55-0ubuntu12~20.04 , < 0.6.55-0ubuntu12~20.04.5 (custom)
Affected: 0.6.55-0ubuntu13 , < 0.6.55-0ubuntu13.3 (custom)
Affected: 0.6.55-0ubuntu14 , < 0.6.55-0ubuntu14.1 (custom)
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Credits
Kevin Backhouse
Show details on NVD website
To clipboard 

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}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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