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 / gtk2.18.5
- GNOME / screensaver2.28.1
References
- VENDOR_ADVISORYhttp://secunia.com/advisories/39317
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2010/02/12/1
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2010/03/16/9
- MISChttp://www.securityfocus.com/bid/38211
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=565527
- MISChttp://git.gnome.org/browse/gnome-screensaver/commit/?id=ab08cc93f2dc6223c8c00bfa1ca4f2d89069dbe0
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2010-04/msg00001.html
- MISChttp://ftp.gnome.org/pub/gnome/sources/gtk+/2.18/gtk+-2.18.5.news
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2010:109
- MISChttp://git.gnome.org/browse/gnome-screensaver/commit/?h=gnome-2-28&id=98f8a22412cf388217fd5b88915eadd274d68520
- MISChttps://bugs.edge.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/446395
- MISChttps://bugzilla.gnome.org/show_bug.cgi?id=598476
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2010/03/05/2
- MISChttp://git.gnome.org/browse/gtk+/commit/?id=0748cf563d0d0d03001a62589f13be16a8ec06c1
- MISChttp://www.heise.de/newsticker/meldung/Gnome-Bildschirmsperre-in-OpenSuse-Linux-wirkungslos-2-Update-928580.html