To: bugtraqat_private announceat_private security-alertsat_private full-disclosureat_private ______________________________________________________________________________ SCO Security Advisory Subject: Linux: CVS double free vulnerability Advisory number: CSSA-2003-006.0 Issue date: 2003 January 31 Cross reference: ______________________________________________________________________________ 1. Problem Description Double-free vulnerabiity in CVS allows remote attackers to cause a denial of service and possibly execute arbitrary code via a malformed Directory request. 2. Vulnerable Supported Versions System Package ---------------------------------------------------------------------- OpenLinux 3.1.1 Server prior to cvs-1.11-9.i386.rpm prior to cvs-doc-ps-1.11-9.i386.rpm OpenLinux 3.1.1 Workstation prior to cvs-1.11-9.i386.rpm prior to cvs-doc-ps-1.11-9.i386.rpm OpenLinux 3.1 Server prior to cvs-1.11-9.i386.rpm prior to cvs-doc-ps-1.11-9.i386.rpm OpenLinux 3.1 Workstation prior to cvs-1.11-9.i386.rpm prior to cvs-doc-ps-1.11-9.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/CSSA-2003-006.0/RPMS 4.2 Packages e7a31e41a320f2397d23611600675d6e cvs-1.11-9.i386.rpm 676963b0422d0cd95397de77a3b927d1 cvs-doc-ps-1.11-9.i386.rpm 4.3 Installation rpm -Fvh cvs-1.11-9.i386.rpm rpm -Fvh cvs-doc-ps-1.11-9.i386.rpm 4.4 Source Package Location ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2003-006.0/SRPMS 4.5 Source Packages da4062b0b49efcabb47c7efb41dc5471 cvs-1.11-9.src.rpm 5. OpenLinux 3.1.1 Workstation 5.1 Package Location ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2003-006.0/RPMS 5.2 Packages 73dee39f6543079466e6d7adbac35ec6 cvs-1.11-9.i386.rpm 129403e58ca353878b09fbbbaaccf645 cvs-doc-ps-1.11-9.i386.rpm 5.3 Installation rpm -Fvh cvs-1.11-9.i386.rpm rpm -Fvh cvs-doc-ps-1.11-9.i386.rpm 5.4 Source Package Location ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2003-006.0/SRPMS 5.5 Source Packages 9030ced613dc9919f78a3200ea931fdc cvs-1.11-9.src.rpm 6. OpenLinux 3.1 Server 6.1 Package Location ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Server/CSSA-2003-006.0/RPMS 6.2 Packages 3b3748a8bca4a972c422f43ff7745337 cvs-1.11-9.i386.rpm 04760b87b35c2a0f72cc41ed9565b47d cvs-doc-ps-1.11-9.i386.rpm 6.3 Installation rpm -Fvh cvs-1.11-9.i386.rpm rpm -Fvh cvs-doc-ps-1.11-9.i386.rpm 6.4 Source Package Location ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Server/CSSA-2003-006.0/SRPMS 6.5 Source Packages 6d87ab953cd4864fe319085b3d2517db cvs-1.11-9.src.rpm 7. OpenLinux 3.1 Workstation 7.1 Package Location ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Workstation/CSSA-2003-006.0/RPMS 7.2 Packages 0aa2347beb3bf9e5219dfce2eedb26d8 cvs-1.11-9.i386.rpm a646b53a8436c880b4752566223e7156 cvs-doc-ps-1.11-9.i386.rpm 7.3 Installation rpm -Fvh cvs-1.11-9.i386.rpm rpm -Fvh cvs-doc-ps-1.11-9.i386.rpm 7.4 Source Package Location ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Workstation/CSSA-2003-006.0/SRPMS 7.5 Source Packages 6e2cf8a3b250a1373846f4d35ea958ad cvs-1.11-9.src.rpm 8. References Specific references for this advisory: http://security.e-matters.de/advisories/012003.html http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0015 SCO security resources: http://www.sco.com/support/security/index.html This security fix closes SCO incidents sr873732, fz527185, erg712206. 9. 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. 10. Acknowledgements Stefan Esser <s.esser@e-matters.de> discovered and researched these vulnerabilities. ______________________________________________________________________________
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