Monday Jul 28, 2008

ISRs available for BIND DNS vulnerability VU#800113

Interim Security Reliefs (ISR) that fix CVE-2008-1447 (VU#800113) in Solaris 8 and 9 are available from http://sunsolve.sun.com/tpatches for the following releases:

SPARC Platform

  • Solaris 9 IDR138950-02 (MD5 = bdbe15fedd50858fbfbbe457867d731c)
  • Solaris 8 IDR138951-01 (MD5 = aca3c968346c05baabea9cf4bda941a9)
x86 Platform
  • Solaris 8 IDR138959-01 (MD5 = 92679afe992097f0b863b78fd5935cba)
  • Solaris 9 IDR138958-02 (MD5 = c55025147410880848d611d0b2c50754)

These ISRs deliver BIND 9 with the fix for CVE-2008-1447. Solaris 8 and 9 use BIND version 8. In that version it is not possible to implement needed fix because of design of this fix. Also, BIND 8 is already end of life (EOL) according ISC.

Sun is currently working on a patch to release the fixed BIND version 9 for Solaris 8 and 9 (replacing the EOL BIND 8 there). Changing the release from BIND 8 to BIND 9 is not a trivial task and therefore the patches to address these are still in progress.

Users MUST completely re-configure BIND as per instructions in /usr/lib/dns/migration.txt in order to use the new BIND 9 and the fixes that these patches deliver. This migration document is shipped as part of the IDRs at SUNWcsu/reloc/usr/lib/dns/migration.txt

Please refer to Sun Alert 239392 "Security Vulnerability in the DNS Protocol may lead to DNS Cache Poisoning", Sun Alert 240048 Update to Sun Alert 239392 and US-CERT Vulnerability Note VU#800113 for more details on this vulnerability.

NOTE: Interim Security Relief (ISRs) are designed to address the concerns identified herein. Sun has limited experience with these (ISRs) due to their interim nature. As such, you should only install the ISRs on systems meeting the configurations described above. Sun may release full patches at a later date, however, Sun is under no obligation whatsoever to create, release, or distribute any such patch.

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This blog provides security vulnerability fix notifications relevant to third party software components distributed and supported as part of Oracle Products.
Summarized version of this blog is available as a mapping of CVEs and solutions.

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