To: bugtraq@securityfocus.com announce@lists.caldera.com scoannmod@xenitec.on.ca ______________________________________________________________________________ Caldera International, Inc. Security Advisory Subject: Open UNIX 8.0.0 UnixWare 7.1.1 : Buffer overflow in libX11 with -xrm Advisory number: CSSA-2002-SCO.15 Issue date: 2002 April 11 Cross reference: ______________________________________________________________________________ 1. Problem Description There is a buffer overflow in the X11 library such that any command linked with it that accepts the -xrm option will core dump if a long string is used as the argument. Any setuid setgid program that accepts the -xrm option is vulnerable to attack. 2. Vulnerable Supported Versions System Package ---------------------------------------------------------------------- Open UNIX 8.0.0 basex UnixWare 7.1.1 basex 3. Solution The proper solution is to install the latest packages. 4. Open UNIX 8.0.0 4.1 Location of Fixed Binaries ftp://stage.caldera.com/pub/security/openunix/CSSA-2002-SCO.15 4.2 Verification MD5 (basex.711b.pkg) = 237963c02165609b41f33d6de50279c5 md5 is available for download from ftp://stage.caldera.com/pub/security/tools/ 4.3 Installing Fixed Binaries Upgrade the affected binaries with the following commands: Download basex.711b.pkg to the /var/spool/pkg directory # pkgadd -d /var/spool/pkg/basex.711b.pkg 5. UnixWare 7.1.1 5.1 Location of Fixed Binaries ftp://stage.caldera.com/pub/security/openunix/CSSA-2002-SCO.15 5.2 Verification MD5 (basex.711b.pkg) = 237963c02165609b41f33d6de50279c5 md5 is available for download from ftp://stage.caldera.com/pub/security/tools/ 5.3 Installing Fixed Binaries Upgrade the affected binaries with the following commands: Download basex.711b.pkg to the /var/spool/pkg directory # pkgadd -d /var/spool/pkg/basex.711b.pkg 6. References Specific references for this advisory: none Caldera UNIX security resources: http://stage.caldera.com/support/security/ Caldera OpenLinux security resources: http://www.caldera.com/support/security/index.html This security fix closes Caldera incidents sr858540, fz519799, erg711938. 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. ______________________________________________________________________________
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