CVE-2010-0732

Severity: medium (CVSS 6.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-03-19 · updated 2026-06-16
Weakness: CWE-362

Description

gdk/gdkwindow.c in GTK+ before 2.18.5, as used in gnome-screensaver before 2.28.1, performs implicit paints on windows of type GDK_WINDOW_FOREIGN, which triggers an X error in certain circumstances and consequently allows physically proximate attackers to bypass screen locking and access an unattended workstation by pressing the Enter key many times.

Affected products

GNOME Gtk: before 2.18.5 — fixed in 2.18.5
GNOME Screensaver: before 2.28.1 — fixed in 2.28.1

How to fix

Upgrade to a fixed version: GNOME Gtk 2.18.5; GNOME Screensaver 2.28.1. Check the vendor advisory for mitigations.

References

http://ftp.gnome.org/pub/gnome/sources/gtk+/2.18/gtk+-2.18.5.news
http://git.gnome.org/browse/gnome-screensaver/commit/?h=gnome-2-28&id=98f8a22412cf388217fd5b88915eadd274d68520
http://git.gnome.org/browse/gnome-screensaver/commit/?id=ab08cc93f2dc6223c8c00bfa1ca4f2d89069dbe0
http://git.gnome.org/browse/gtk+/commit/?id=0748cf563d0d0d03001a62589f13be16a8ec06c1
http://lists.opensuse.org/opensuse-security-announce/2010-04/msg00001.html
http://secunia.com/advisories/39317
http://www.heise.de/newsticker/meldung/Gnome-Bildschirmsperre-in-OpenSuse-Linux-wirkungslos-2-Update-928580.html
http://www.mandriva.com/security/advisories?name=MDVSA-2010:109
http://www.openwall.com/lists/oss-security/2010/02/12/1
http://www.openwall.com/lists/oss-security/2010/03/05/2
http://www.openwall.com/lists/oss-security/2010/03/16/9
http://www.securityfocus.com/bid/38211

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