CVE Vulnerability

CVE-2020-16125

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.

4.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

6.8 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.9 / Impact : 5.9

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1900314 Third Party Advisory
https://gitlab.gnome.org/GNOME/gdm/-/issues/642 Exploit Vendor Advisory
https://securitylab.github.com/advisories/GHSL-2020-202-gdm3-LPE-unresponsive-accounts-daemon Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:gnome:gnome_display_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gnome_display_manager:*:*:*:*:*:*:*:*
Information

Published : 2020-11-10 05:15

Updated : 2020-11-24 06:12

NVD link : CVE-2020-16125

Mitre link : CVE-2020-16125

Products Affected
No products.
CWE
CWE-754