What’s Vulnerable › Vulnerabilities

CVE-2017-12164

• Severity: medium (CVSS 6.4 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-07-26 · updated 2026-06-17
• Weakness: CWE-592

Description

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.

Affected products

• Gnome Display Manager: 3.24.1

References

• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12164
• https://gitlab.gnome.org/GNOME/gdm/commit/ff98b28
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12164
• https://gitlab.gnome.org/GNOME/gdm/commit/ff98b28

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