CVE-2017-12164 — MEDIUM (4.1)

Vulnerability 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.

CVSS Score

4.1

MEDIUM

CVSS:3.0/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Gnome	Gnome Display Manager	3.24.1

Related Weaknesses (CWE)

CWE-592 CWE-665

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12164Issue TrackingPatchThird Party Advisory
https://gitlab.gnome.org/GNOME/gdm/commit/ff98b28PatchVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12164Issue TrackingPatchThird Party Advisory
https://gitlab.gnome.org/GNOME/gdm/commit/ff98b28PatchVendor Advisory

FAQ

What is CVE-2017-12164?

CVE-2017-12164 is a vulnerability with a CVSS score of 4.1 (MEDIUM). 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 anot...

How severe is CVE-2017-12164?

CVE-2017-12164 has been rated MEDIUM with a CVSS base score of 4.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-12164?

Check the references section above for vendor advisories and patch information. Affected products include: Gnome Gnome Display Manager.