Improper Initialization in GNOME Display Manager - CVE-2017-12164

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU36816

Improper Initialization in GNOME Display Manager - CVE-2017-12164

Published: July 26, 2018 / Updated: August 8, 2020


Vulnerability identifier: #VU36816
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-12164
CWE-ID: CWE-665
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Gnome Development Team
Affected software:
GNOME Display Manager

Detailed vulnerability description

The vulnerability allows a local non-authenticated attacker to execute arbitrary code.

A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.


How to mitigate CVE-2017-12164

Install update from vendor's website.

Sources