To: bugtraq@securityfocus.com announce@lists.caldera.com scoannmod@xenitec.on.ca ______________________________________________________________________________ SCO Security Advisory Subject: OpenServer 5.0.5 OpenServer 5.0.6 OpenServer 5.0.7 : remote buffer overflow in sendmail (CERT CA-2003-07) Advisory number: CSSA-2003-SCO.6 Issue date: 2003 March 12 Cross reference: ______________________________________________________________________________ 1. Problem Description From CA-2003-07: Researchers at Internet Security Systems (ISS) have discovered a remotely exploitable vulnerability in sendmail. This vulnerability could allow an intruder to gain control of a vulnerable sendmail server. 2. Vulnerable Supported Versions System Vulnerable Versions ---------------------------------------------------------------------- OpenServer 5.0.5 previous to sendmail 8.11.0a OpenServer 5.0.6 previous to sendmail 8.11.0a OpenServer 5.0.7 previous to sendmail 8.11.0a 3. Solution The proper solution is to install the latest packages. 4. OpenServer 5.0.5 4.1 Location of Fixed Binaries ftp://ftp.sco.com/pub/updates/OpenServer/CSSA-2003-SCO.6 4.2 Verification MD5 (sendmail.506.tar) = da105d0a82313ed19bc10b515467e93f md5 is available for download from ftp://ftp.sco.com/pub/security/tools 4.3 Installing Fixed Binaries Upgrade the affected binaries with the following sequence: 1) Download the sendmail.506.tar file to the /tmp directory (OpenServer 5.0.5 uses the 5.0.6 tar image) 2) Extract the files from the tar archive: cd /tmp; tar xvf sendmail.506.tar 3) 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.sco.com/pub/updates/OpenServer/CSSA-2003-SCO.6 5.2 Verification MD5 (sendmail.506.tar) = da105d0a82313ed19bc10b515467e93f md5 is available for download from ftp://ftp.sco.com/pub/security/tools 5.3 Installing Fixed Binaries Upgrade the affected binaries with the following sequence: 1) Download the sendmail.506.tar file to the /tmp directory 2) Extract the files from the tar archive: cd /tmp; tar xvf sendmail.506.tar 3) Run the custom command, specify an install from media images, and specify the /tmp directory as the location of the images. 6. OpenServer 5.0.7 6.1 Location of Fixed Binaries ftp://ftp.sco.com/pub/updates/OpenServer/CSSA-2003-SCO.6 6.2 Verification MD5 (sendmail.507.tar) = 807f1fa8d15a3361a589119bfca18533 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 the sendmail.507.tar file to the /tmp directory 2) Extract the files from the tar archive: cd /tmp; tar xvf sendmail.507.tar 3) Run the custom command, specify an install from media images, and specify the /tmp directory as the location of the images. 7. References Specific references for this advisory: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1337 http://www.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=21950 http://www.cert.org/advisories/CA-2003-07.html http://www.kb.cert.org/vuls/id/398025 http://www.sendmail.org/8.12.8.html SCO security resources: http://www.sco.com/support/security/index.html This security fix closes SCO incidents sr875284, fz527484, erg712247. 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. 9. Acknowledgements Internet Security Systems, Inc. discovered and researched this vulnerability. ______________________________________________________________________________
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