To: bugtraq@securityfocus.com announce@lists.caldera.com scoannmod@xenitec.on.ca ______________________________________________________________________________ Caldera International, Inc. Security Advisory Subject: OpenServer 5.0.5 OpenServer 5.0.6 : uux status file name buffer overflow Advisory number: CSSA-2002-SCO.34 Issue date: 2002 July 15 Cross reference: ______________________________________________________________________________ 1. Problem Description A very long status file name given to the uux program would cause it to memory fault. This could be used by a malicious local user to gain privilege. 2. Vulnerable Supported Versions System Binaries ---------------------------------------------------------------------- OpenServer 5.0.5 /usr/bin/uux OpenServer 5.0.6 /usr/bin/uux 3. Solution The proper solution is to install the latest packages. 4. OpenServer 5.0.5 4.1 Location of Fixed Binaries ftp://ftp.caldera.com/pub/updates/OpenServer/CSSA-2002-SCO.34 4.2 Verification MD5 (VOL.000.000) = 77bd1623ed1d220f976736124b743fc7 md5 is available for download from ftp://ftp.caldera.com/pub/security/tools 4.3 Installing Fixed Binaries Upgrade the affected binaries with the following commands: 1) Download the VOL* files to the /tmp directory Run the custom command, specify an install from media images, and specify the /tmp directory as the location of the images. 5. OpenServer 5.0.6 5.1 Location of Fixed Binaries ftp://ftp.caldera.com/pub/updates/OpenServer/CSSA-2002-SCO.34 5.2 Verification MD5 (VOL.000.000) = 77bd1623ed1d220f976736124b743fc7 md5 is available for download from ftp://ftp.caldera.com/pub/security/tools 5.3 Installing Fixed Binaries Upgrade the affected binaries with the following commands: 1) Download the VOL* files to the /tmp directory Run the custom command, specify an install from media images, and specify the /tmp directory as the location of the images. 6. References Specific references for this advisory: none Caldera security resources: http://www.caldera.com/support/security/index.html This security fix closes Caldera incidents sr865287, fz521102, erg712066. 7. Disclaimer Caldera International, Inc. 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 Caldera products. 8. Acknowledgements KF <dotslash@snosoft.com> discovered and researched this vulnerability. ______________________________________________________________________________
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