(Sun Issues Fix) X Font Server Overflows in QueryXBitmaps and QueryXExtents Requests Let Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1019243 |
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SecurityTracker URL: http://securitytracker.com/id/1019243
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CVE Reference:
CVE-2007-4568, CVE-2007-4990
(Links to External Site)
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Date: Jan 18 2008
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Impact:
Execution of arbitrary code via network, User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): XFS 1.0.4 and prior versions
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Description:
A vulnerability was reported in X.org's X Font Server. A remote user can execute arbitrary code on the target system.
A remote user can send specially crafted data to trigger a buffer overflow and execute arbitrary code on the target system. The code will run with the privileges of the target X Font Server.
Specially crafted QueryXBitmaps and QueryXExtents protocol requests can trigger an integer overflow.
Specially crafted QueryXBitmaps and QueryXExtents protocol requests can trigger a heap overflow.
On some systems, this vulnerability cannot be exploited remotely, depending on whether the X Font Server listens to a network port or not.
The vendor was notified on September 5, 2007.
Sean Larsson of VeriSign iDefense Labs discovered these vulnerabilities.
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Impact:
A remote user can execute arbitrary code on the target system.
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Solution:
Sun has issued the following fixes.
SPARC Platform
* Solaris 8 with patch 109862-05 or later
* Solaris 9 with patch 113923-04 or later
* Solaris 10 with patch 119059-32 or later
x86 Platform
* Solaris 8 with patch 109863-05 or later
* Solaris 9 with patch 113924-04 or later
* Solaris 10 with patch 119060-31 or later
Note: The patches should have the "rebootafter" patch property, however, the Solaris 9 and Solaris 10 patches are missing that property and new revisions are being built.
See the advisory for more details.
The Sun advisory is available at:
http://sunsolve.sun.com/search/document.do?assetkey=1-26-103114-1
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Vendor URL: www.x.org/ (Links to External Site)
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Cause:
Boundary error
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Underlying OS:
UNIX (Solaris - SunOS)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Fri, 18 Jan 2008 01:26:21 -0500
Subject: http://sunsolve.sun.com/search/document.do?assetkey=1-26-103114-1
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CVE-2007-4568
CVE-2007-4990
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