bugtraq - OpenLinux: wget: Buffer overflow

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Date: Fri, 3 Oct 2003 16:02:50 -0700
From: security@....com
To: announce@...ts.sco.com, bugtraq@...urityfocus.com,
   security-alerts@...uxsecurity.com, full-disclosure@...ts.netsys.com
Subject: OpenLinux: wget: Buffer overflow



To: announce@...ts.sco.com bugtraq@...urityfocus.com security-alerts@...uxsecurity.com full-disclosure@...ts.netsys.com

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______________________________________________________________________________

			SCO Security Advisory

Subject:		OpenLinux: wget: Buffer overflow 
Advisory number: 	CSSA-2003-025.0
Issue date: 		2003 October 03
Cross reference: 	sr883607 fz528216 erg712410 CAN-2003-1565
______________________________________________________________________________


1. Problem Description

	wget is a freely available network utility to retrieve files
	using HTTP and FTP. 

	Stefano Zacchirol found a buffer overflow vulnerability in the 
	code that handles URLs in wget. An attacker can create a long 
	(more than 256 characters), specially crafted URL that when 
	parsed by wget can cause the execution of arbitrary code or 
	program misbehavior. The packages included in this update fix 
	the problem by unconditionally terminating long URLs
	in all cases. 

	The Common Vulnerabilities and Exposures project (cve.mitre.org) 
	has assigned the name CAN-2003-1565 to this issue.


2. Vulnerable Supported Versions

	System				Package
	----------------------------------------------------------------------
	OpenLinux 3.1.1 Server		prior to wget-1.8.2-1.i386.rpm
	OpenLinux 3.1.1 Workstation	prior to wget-1.8.2-1.i386.rpm


3. Solution

	The proper solution is to install the latest packages. Many
	customers find it easier to use the Caldera System Updater, called
	cupdate (or kcupdate under the KDE environment), to update these
	packages rather than downloading and installing them by hand.


4. OpenLinux 3.1.1 Server

	4.1 Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server//RPMS

	4.2 Packages

	c60a6e417ac41287973735f2c82d461c	wget-1.8.2-1.i386.rpm

	4.3 Installation

	rpm -Fvh wget-1.8.2-1.i386.rpm

	4.4 Source Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server//SRPMS

	4.5 Source Packages

	8ef3938fd5d49cc029b43c6b21cef9e0	wget-1.8.2-1.src.rpm


5. OpenLinux 3.1.1 Workstation

	5.1 Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation//RPMS

	5.2 Packages

	1c0c42afd39e6d6183b9abf4cc07d039	wget-1.8.2-1.i386.rpm

	5.3 Installation

	rpm -Fvh wget-1.8.2-1.i386.rpm

	5.4 Source Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation//SRPMS

	5.5 Source Packages

	932ee4ea3cc81a649735fcf691352be2	wget-1.8.2-1.src.rpm


6. References

	Specific references for this advisory:
	http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-1565
	http://marc.theaimsgroup.com/?l=bugtraq&m=105474357016184&w=2

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

	This security fix closes SCO incidents sr883607 fz528216
	erg712410.


7. 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.


8. Acknowledgements

	SCO would like to thank Stefano Zacchirol.

______________________________________________________________________________

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