CVE-2021-3939

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Summary

CVECVE-2021-3939
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-11-17 04:15:00 UTC
Updated2023-06-12 07:16:00 UTC
DescriptionUbuntu-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.

Risk And Classification

Problem Types: CWE-763

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Canonical Accountsservice All All All All
Operating System Canonical Ubuntu Linux 20.04 All All All
Operating System Canonical Ubuntu Linux 21.04 All All All
Operating System Canonical Ubuntu Linux 21.10 All All All

References

ReferenceSourceLinkTags
Error: Page not found MISC bugs.launchpad.net
Ubuntu accountsservice Double-Free Memory Corruption ≈ Packet Storm MISC packetstormsecurity.com
USN-5149-1: AccountsService vulnerability | Ubuntu security notices | Ubuntu MISC ubuntu.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: Kevin Backhouse

Legacy QID Mappings

  • 198573 Ubuntu Security Notification for AccountsService Vulnerability (USN-5149-1)
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