(Sun Issues Fix for JDS) libXpm Integer and Stack Overflows May Let Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1011578 |
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SecurityTracker URL: http://securitytracker.com/id/1011578
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CVE Reference:
CVE-2004-0687, CVE-2004-0688
(Links to External Site)
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Date: Oct 9 2004
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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): 2003, Release 2
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Description:
Some vulnerabilities were reported in libXpm. A remote user may be able to execute arbitrary code on applications that use libXpm. Sun Java Desktop System is affected.
The vendor reported that there are some integer overflows [CVE: CAN-2004-0687] and stack overflows [CVE: CAN-2004-0688] in the libXpm X Pixmap library, shipped as part of the X Window System.
A stack overflow is reported in xpmParseColors() in 'parse.c' that can be triggered by a specially crafted XPMv1 and XPMv2/3 file. A demonstration exploit file is available at:
http://scary.beasts.org/misc/doom.xpm
A stack overflow is reported in the reading of pixel values in the ParseAndPutPixels() function in 'create.c' and in the ParsePixels() function in 'parse.c'. A demonstration exploit file is available at:
http://scary.beasts.org/misc/doom2.xpm
An integer overflow is reported in the colorTable allocation in xpmParseColors() in 'parse.c'. The XpmCreateImageFromXpmImage, CreateXImage, ParsePixels, ParseAndPutPixels, and ParsePixels are affected.
The vendor credits Chris Evans with reporting these flaws. The advisory from Chris Evans is available at:
http://scary.beasts.org/security/CESA-2004-003.txt
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Impact:
A remote user can create a specially crafted image file that, when processed by an application using libXpm, will execute arbitrary code on the target system with the privileges of the target application.
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Solution:
Sun has issued the following fixes:
Linux Platform
Sun Java Desktop System (JDS) 2003 with the updated RPMs (patch-9400)
Sun Java Desktop System (JDS) Release 2 with the updated RPMs (patch-9400)
Sun is working on a fix for Solaris.
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Vendor URL: sunsolve.sun.com/search/document.do?assetkey=1-26-57653-1 (Links to External Site)
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Cause:
Boundary error
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Underlying OS:
Linux (Any)
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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: Sat, 9 Oct 2004 15:44:24 -0400
Subject: http://sunsolve.sun.com/search/document.do?assetkey=1-26-57653-1
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Sun reports that the Motif library (libXm) shipped with Solaris and JDS for Linux
are affected by the vulnerabilities described in CVE CAN-2004-0687 and CAN-2004-0688.
Solaris 7, 8, and 9 are affected.
Sun has issued the following fixes:
Linux Platform
Sun Java Desktop System (JDS) 2003 with the updated RPMs (patch-9400)
Sun Java Desktop System (JDS) Release 2 with the updated RPMs (patch-9400)
Sun is working on a fix for Solaris.
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Sun Alert ID: 57653
Synopsis: libXpm Security Vulnerabilities Affect the Motif Library (libXm)
Category: Security
Product: Solaris Common Desktop Environment (CDE), Sun Java Desktop System (JDS)
BugIDs: 5086486, 6175145
Avoidance: Patch, Workaround
State: Committed
Date Released: 08-Oct-2004
Date Closed:
Date Modified:
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