CVE-2020-16125
Last modified
CVE-2020-16125 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. gdm3 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.. EPSS estimates a 1.11% chance of exploitation in the next 30 days.
Description
gdm3 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.
Metrics
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gnome | Gnome Display Manager | < 3.36.2 |
| Gnome | Gnome Display Manager | >= 3.38.0, < 3.38.2 |
References
- https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1900314Third Party Advisory
- https://gitlab.gnome.org/GNOME/gdm/-/issues/642Exploit, Vendor Advisory
- https://securitylab.github.com/advisories/GHSL-2020-202-gdm3-LPE-unresponsive-accounts-daemonExploit, Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1900314Third Party Advisory
- https://gitlab.gnome.org/GNOME/gdm/-/issues/642Exploit, Vendor Advisory
- https://securitylab.github.com/advisories/GHSL-2020-202-gdm3-LPE-unresponsive-accounts-daemonExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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