GNOME Display Manager g_strsplit() Bug Lets Local Users Deny Service
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SecurityTracker Alert ID: 1018523
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SecurityTracker URL: http://securitytracker.com/id?1018523
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CVE Reference: CVE-2007-3381
(Links to External Site)
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Date: Aug 7 2007
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Impact: Denial of service via local system
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Fix Available: Yes
Vendor Confirmed: Yes
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Version(s): prior to 2.16.7
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Description: A vulnerability was reported in GNOME Display Manager. A local user can cause denial of service conditions.
A local user can send specially crafted commands to crash the target GDM daemon and cause GDM to stop managing any subsequent display
sessions.
The flaw resides in daemon/gdm.c, daemon/gdmconfig.c, gui/gdmconfig.c, gui/gdmflexiserver.c, and gui/gdmconfig.c.
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Impact: A local user can cause denial of service conditions on the target system.
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Solution: The vendor has issued a fixed version (2.16.7).
The GDM advisory is available at:
http://ftp.gnome.org/pub/GNOME/sources/gdm/2.16/gdm-2.16.7.changes
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Vendor URL: www.gnome.org/projects/gdm/ (Links to External Site)
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Cause: State error
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Underlying OS: Linux (Any), UNIX (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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Date: Tue, 7 Aug 2007 17:55:25 -0400
Subject: GNOME Display Manager (GDM)
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http://ftp.gnome.org/pub/GNOME/sources/gdm/2.16/gdm-2.16.7.changes
This fixes CVE-2007-3381 - a denial of service attack where
the user can crash the GDM daemon with a carefully crafted GDM
sockets command and cause GDM to stop managing future displays.
* daemon/gdm.c, daemon/gdmconfig.c, gui/gdmconfig.c,
gui/gdmflexiserver.c, gui/gdmconfig.c: Fix g_strsplit calls
so that NULL return codes are better handled.
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