CVE-2020-16125
gdm3 would start gnome-initial-setup if it cannot contact accountservice
MEDIUM 6.8EPSS 1.1%
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.
- Affected
- Gnome · GDM3
- CVSS v3.1 NVD
- 6.8 MEDIUM
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1 UBUNTU
- 7.2 HIGH
CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H - CVSS v2.0 NVD
- 4.6 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P - EPSS
- 1.11% chance of exploitation in the next 30 days, 65th percentile
- Published
- 2020-11-10
- Updated
- 2024-09-17
Proof-of-concept exploits (2)
- https://gitlab.gnome.org/GNOME/gdm/-/issues/642
- za970120604/CVE-2020-16125-Reproduction1★ · 2023-08-03
Security advisories
- https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1900314
- https://securitylab.github.com/advisories/GHSL-2020-202-gdm3-LPE-unresponsive-accounts-da…