(Mandrake Issues Fix) libXpm Integer and Stack Overflows May Let Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1011327
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SecurityTracker URL: http://securitytracker.com/id?1011327
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CVE Reference: CAN-2004-0687
(Links to External Site)
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Date: Sep 16 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): X11 R6.8.0
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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.
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: Mandrake has released a fix.
Mandrakelinux 10.0:
b04f06bcbb1d68a0bb5a27a3409ab695 10.0/RPMS/libxpm4-3.4k-27.1.100mdk.i586.rpm
674d40df87b997be5be5b63088cc25f1 10.0/RPMS/libxpm4-devel-3.4k-27.1.100mdk.i586.rpm
6f384448d85afd56100e68608d307536 10.0/SRPMS/xpm-3.4k-27.1.100mdk.src.rpm
Mandrakelinux 10.0/AMD64:
6f384448d85afd56100e68608d307536 amd64/10.0/SRPMS/xpm-3.4k-27.1.100mdk.src.rpm
6fed4973b8a0f06a78176b35069d39d3
amd64/10.0/RPMS/lib64xpm4-3.4k-27.1.100mdk.amd64.rpm
72b965c6dbf0d3cdc437405c18c8d658 amd64/10.0/RPMS/lib64xpm4-devel-3.4k-27.1.100mdk.amd64.rpm
Corporate Server 2.1:
09d95b236c8bbe18e64a521c91edecea corporate/2.1/RPMS/libxpm4-3.4k-21.1.C21mdk.i586.rpm
f95679273cc924ceb8343f5abb637bbf
corporate/2.1/RPMS/libxpm4-devel-3.4k-21.1.C21mdk.i586.rpm
93b631321701b3309cf47ca62f92b2b2 corporate/2.1/SRPMS/xpm-3.4k-21.1.C21mdk.src.rpm
Corporate Server 2.1/x86_64:
a98d3ac4aca9d273aec7d0df7affd389 x86_64/corporate/2.1/RPMS/libxpm4-3.4k-21.1.C21mdk.x86_64.rpm
d6aa250f8bb892ccc48e914085e8472f x86_64/corporate/2.1/RPMS/libxpm4-devel-3.4k-21.1.C21mdk.x86_64.rpm
93b631321701b3309cf47ca62f92b2b2
x86_64/corporate/2.1/SRPMS/xpm-3.4k-21.1.C21mdk.src.rpm
Mandrakelinux 9.2:
8d9a613ad0d381e0da4ea8b455dc81ef 9.2/RPMS/libxpm4-3.4k-27.1.92mdk.i586.rpm
f279c6c59dec9a85bc6d209931b2d9b1 9.2/RPMS/libxpm4-devel-3.4k-27.1.92mdk.i586.rpm
ae0fa1a38affc7cdbef9505db0bb8e79 9.2/SRPMS/xpm-3.4k-27.1.92mdk.src.rpm
Mandrakelinux 9.2/AMD64:
5f074ee2a98ebefedd94ce12c481469d amd64/9.2/RPMS/lib64xpm4-3.4k-27.1.92mdk.amd64.rpm
dab19b1fdec00205b18a3d0db64ae7ea
amd64/9.2/RPMS/lib64xpm4-devel-3.4k-27.1.92mdk.amd64.rpm
ae0fa1a38affc7cdbef9505db0bb8e79 amd64/9.2/SRPMS/xpm-3.4k-27.1.92mdk.src.rpm
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Vendor URL: www.x.org/pub/X11R6.8.0/patches/README.xorg-CAN-2004-0687-0688.patch (Links to External Site)
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Cause: Boundary error
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Underlying OS: Linux (Mandrake)
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Underlying OS Comments: 10.0, 9.2, Corporate Server 2.1
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Reported By: Mandrake Linux Security Team <security@linux-mandrake.com>
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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: 16 Sep 2004 00:53:50 -0000
From: Mandrake Linux Security Team <security@linux-mandrake.com>
Subject: [Security Announce] MDKSA-2004:098 - Updated libxpm4 packages fix
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This is a multi-part message in MIME format...
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
_______________________________________________________________________
Mandrakelinux Security Update Advisory
_______________________________________________________________________
Package name: libxpm4
Advisory ID: MDKSA-2004:098
Date: September 15th, 2004
Affected versions: 10.0, 9.2, Corporate Server 2.1
______________________________________________________________________
Problem Description:
Chris Evans found several stack and integer overflows in the libXpm code
of X.Org/XFree86 (from which the libxpm code is derived):
Stack overflows (CAN-2004-0687):
Careless use of strcat() in both the XPMv1 and XPMv2/3 xpmParseColors code
leads to a stack based overflow (parse.c).
Stack overflow reading pixel values in ParseAndPutPixels (create.c) as
well as ParsePixels (parse.c).
Integer Overflows (CAN-2004-0688):
Integer overflow allocating colorTable in xpmParseColors (parse.c) -
probably a crashable but not exploitable offence.
The updated packages have patches from Chris Evans and Matthieu Herrb
to address these vulnerabilities.
_______________________________________________________________________
References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0687
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0688
______________________________________________________________________
Updated Packages:
Mandrakelinux 10.0:
b04f06bcbb1d68a0bb5a27a3409ab695 10.0/RPMS/libxpm4-3.4k-27.1.100mdk.i586.rpm
674d40df87b997be5be5b63088cc25f1 10.0/RPMS/libxpm4-devel-3.4k-27.1.100mdk.i586.rpm
6f384448d85afd56100e68608d307536 10.0/SRPMS/xpm-3.4k-27.1.100mdk.src.rpm
Mandrakelinux 10.0/AMD64:
6f384448d85afd56100e68608d307536 amd64/10.0/SRPMS/xpm-3.4k-27.1.100mdk.src.rpm
6fed4973b8a0f06a78176b35069d39d3 amd64/10.0/RPMS/lib64xpm4-3.4k-27.1.100mdk.amd64.rpm
72b965c6dbf0d3cdc437405c18c8d658 amd64/10.0/RPMS/lib64xpm4-devel-3.4k-27.1.100mdk.amd64.rpm
Corporate Server 2.1:
09d95b236c8bbe18e64a521c91edecea corporate/2.1/RPMS/libxpm4-3.4k-21.1.C21mdk.i586.rpm
f95679273cc924ceb8343f5abb637bbf corporate/2.1/RPMS/libxpm4-devel-3.4k-21.1.C21mdk.i586.rpm
93b631321701b3309cf47ca62f92b2b2 corporate/2.1/SRPMS/xpm-3.4k-21.1.C21mdk.src.rpm
Corporate Server 2.1/x86_64:
a98d3ac4aca9d273aec7d0df7affd389 x86_64/corporate/2.1/RPMS/libxpm4-3.4k-21.1.C21mdk.x86_64.rpm
d6aa250f8bb892ccc48e914085e8472f x86_64/corporate/2.1/RPMS/libxpm4-devel-3.4k-21.1.C21mdk.x86_64.rp
m
93b631321701b3309cf47ca62f92b2b2 x86_64/corporate/2.1/SRPMS/xpm-3.4k-21.1.C21mdk.src.rpm
Mandrakelinux 9.2:
8d9a613ad0d381e0da4ea8b455dc81ef 9.2/RPMS/libxpm4-3.4k-27.1.92mdk.i586.rpm
f279c6c59dec9a85bc6d209931b2d9b1 9.2/RPMS/libxpm4-devel-3.4k-27.1.92mdk.i586.rpm
ae0fa1a38affc7cdbef9505db0bb8e79 9.2/SRPMS/xpm-3.4k-27.1.92mdk.src.rpm
Mandrakelinux 9.2/AMD64:
5f074ee2a98ebefedd94ce12c481469d amd64/9.2/RPMS/lib64xpm4-3.4k-27.1.92mdk.amd64.rpm
dab19b1fdec00205b18a3d0db64ae7ea amd64/9.2/RPMS/lib64xpm4-devel-3.4k-27.1.92mdk.amd64.rpm
ae0fa1a38affc7cdbef9505db0bb8e79 amd64/9.2/SRPMS/xpm-3.4k-27.1.92mdk.src.rpm
_______________________________________________________________________
To upgrade automatically use MandrakeUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.
All packages are signed by Mandrakesoft for security. You can obtain
the GPG public key of the Mandrakelinux Security Team by executing:
gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98
You can view other update advisories for Mandrakelinux at:
http://www.mandrakesoft.com/security/advisories
If you want to report vulnerabilities, please contact
security_linux-mandrake.com
Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team
<security linux-mandrake.com>
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____________________________________________________
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