To: bugtraqat_private announceat_private scoannmodat_private ______________________________________________________________________________ Caldera International, Inc. Security Advisory Subject: OpenServer 5.0.5 OpenServer 5.0.6 : snmpd denial-of-service vulnerabilities. Advisory number: CSSA-2002-SCO.25 Issue date: 2002 June 10 Cross reference: ______________________________________________________________________________ 1. Problem Description The University of Oulu (Finland) wrote approximately 53000 tests for snmpd error conditions. For OpenServer, many of the tests caused the snmp daemon to grow in size. This could lead to denial-of-service attacks. 2. Vulnerable Supported Versions System Binaries ---------------------------------------------------------------------- OpenServer 5.0.5 /usr/lib/libsnmp.so.1.Z OpenServer 5.0.6 /usr/lib/libsnmp.so.1.Z 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.25 4.2 Verification MD5 (VOL.000.000) = 5cd988029bb6da765d2e4040759dbd33 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* file 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.25 5.2 Verification MD5 (VOL.000.000) = 5cd988029bb6da765d2e4040759dbd33 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* file 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: http://www.cert.org/advisories/CA-2002-03.html Caldera security resources: http://www.caldera.com/support/security/index.html This security fix closes Caldera incidents sr858202,SCO-559-1345 and erg711930. 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 This vulnerability was discovered and researched by the University of Oulu (oulu.fi). ______________________________________________________________________________
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