CVE-2020-16125

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Summary

CVECVE-2020-16125
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-11-10 05:15:00 UTC
Updated2020-11-24 18:12:00 UTC
Descriptiongdm3 versions before 3.36.2 or 3.38.2 would start gnome-initial-setup if gdm3 can't contact the accountservice service via dbus in a timely manner; on Ubuntu (and potentially derivatives) this could be be chained with an additional issue that could allow a local user to create a new privileged account.

Risk And Classification

Problem Types: CWE-754

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gnome Gnome Display Manager All All All All
Application Gnome Gnome Display Manager All All All All

References

ReferenceSourceLinkTags
gdm3 privilege escalation due to unresponsive accounts-daemon (GHSL-2020-202) (#642) · Issues · GNOME / gdm · GitLab MISC gitlab.gnome.org Exploit, Vendor Advisory
GHSL-2020-202: Local Privilege Escalation (LPE) in Ubuntu gdm3 - CVE-2020-16125 - GitHub Security Lab MISC securitylab.github.com Exploit, Third Party Advisory
Bug #1900314 “Privilege escalation using vulnerabilities in gdm3...” : Bugs : gdm3 package : Ubuntu MISC bugs.launchpad.net Third Party Advisory
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

  • 750487 OpenSUSE Security Update for gdm (openSUSE-SU-2020:2264-1)
  • 750588 OpenSUSE Security Update for gdm (openSUSE-SU-2020:1961-1)
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