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			SCO Security Advisory

Subject:		OpenServer 5.0.6 OpenServer 5.0.7 OpenServer 6.0.0 : GTK+ gdk-pixbuf XPM Loader Heap Overflow Vulnerability
Advisory number:	SCOSA-2006.8
Issue date:		2006 January 13
Cross reference:	fz533256
			CVE-2005-3186
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1. Problem Description

	Integer overflow in the GTK+ gdk-pixbuf XPM image rendering
	library in GTK+ allows attackers to execute arbitrary code via
	an XPM file with a number of colors that causes insufficient
	memory to be allocated, which leads to a heap-based buffer
	overflow.
	
	The Common Vulnerabilities and Exposures project (cve.mitre.org)
	has assigned the name CVE-2005-3186 to this issue.


2. Vulnerable Supported Versions

	System		 Binaries
	----------------------------------------------------------------------
	OpenServer 5.0.6 /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader_xpm.so
	OpenServer 5.0.7 /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader_xpm.so
	OpenServer 6.0.0 /osr5/usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader_xpm.so
			 /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader_xpm.so

3. Solution

	The proper solution is to install the latest packages.


4. OpenServer 5.0.6

	4.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.8


	4.2 Verification

	MD5 (p533256.507_vol.tar) = e61c97d16e43e72f7b00a3892756e805

	md5 is available for download from
		ftp://ftp.sco.com/pub/security/tools


	4.3 Installing Fixed Binaries

	The following packages should be installed on your system before
	you install this fix:

		OSS646C:
		ftp://ftp.sco.com/pub/openserver5/oss646c/

		GWXLIBS version 2.1.0:
		ftp://ftp.sco.com/pub/openserver5/opensrc/gwxlibs-2.1.0Ba/

	Upgrade the affected binaries with the following sequence:

	1) Download p533256.507_vol.tar file to a directory.

	2) Extract VOL* files.

	   # tar xvf p533256.507_vol.tar

	3) Run the custom command, specify an install from media images,
	   and specify the directory as the location of the images.


5. OpenServer 5.0.7

	5.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.8


	5.2 Verification

	MD5 (p533256.507_vol.tar) = e61c97d16e43e72f7b00a3892756e805

	md5 is available for download from
		ftp://ftp.sco.com/pub/security/tools


	5.3 Installing Fixed Binaries

	The following package should be installed on your system before
	you install this fix:

		osr507mp4:
		http://www.sco.com/support/update/download/release.php?rid=116

	Upgrade the affected binaries with the following sequence:

	1) Download p533256.507_vol.tar file to a directory.

	2) Extract VOL* files.

	   # tar xvf p533256.507_vol.tar

	3) Run the custom command, specify an install from media images,
	   and specify the directory as the location of the images.


6. OpenServer 6.0.0

	6.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.8


	6.2 Verification

	MD5 (p533256.600_vol.tar) = ff1837fba28127fb647fd07cec2b9abf

	md5 is available for download from
		ftp://ftp.sco.com/pub/security/tools


	6.3 Installing Fixed Binaries

	Upgrade the affected binaries with the following sequence:

	1) Download p533256.600_vol.tar file to a directory.

	2) Extract VOL* files.

	   # tar xvf p533256.600_vol.tar

	3) Run the custom command, specify an install from media images,
	   and specify the directory as the location of the images.


7. References

	Specific references for this advisory:
		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3186
		http://secunia.com/advisories/17522
		http://securitytracker.com/id?1015216
		http://www.frsirt.com/english/advisories/2005/2433
		http://www.idefense.com/application/poi/display?id=339&type=vulnerabilities
		http://www.securityfocus.com/bid/15435

	SCO security resources:
		http://www.sco.com/support/security/index.html

	SCO security advisories via email
		http://www.sco.com/support/forums/security.html

	This security fix closes SCO incidents fz533256.


8. Disclaimer

	SCO is not responsible for the misuse of any of the information
	we provide on this website and/or through our security
	advisories. Our advisories are a service to our customers
	intended to promote secure installation and use of SCO
	products.

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