Patch-ID# 103667-12 Keywords: security DNS libresolv.so.2 CERT BIND 4.9.3 in.named named-xfer Synopsis: SunOS 5.5: libresolv, in.named, named-xfer, nslookup & nstest patch Date: Apr/25/2001 Solaris Release: 2.5 SunOS Release: 5.5 Unbundled Product: Unbundled Release: Xref: This patch available for x86 as patch 103668 Topic: SunOS 5.5: libresolv, in.named, named-xfer, nslookup & nstest patch NOTE: Refer to Special Install Instructions section for IMPORTANT specific information on this patch. Relevant Architectures: sparc BugId's fixed with this patch: 1238679 1247019 1253600 1264386 1265838 1266187 4007986 4008451 4018620 4026266 4037068 4038360 4056997 4068577 4071167 4127017 4127028 4133571 4134616 4409676 Changes incorporated in this version: 4409676 Patches accumulated and obsoleted by this patch: 103703-01 Patches which conflict with this patch: Patches required with this patch: Obsoleted by: Files included with this patch: /usr/include/arpa/nameser.h /usr/include/netdb.h /usr/include/resolv.h /usr/lib/libresolv.so /usr/lib/libresolv.so.1 /usr/lib/libresolv.so.2 /usr/lib/nslookup.help /usr/lib/nss_dns.so.1 /usr/sbin/in.named /usr/sbin/named-xfer /usr/sbin/nslookup /usr/sbin/nstest Problem Description: 4409676 CERT Advisory CA-2001-02/Solaris dns (bind) (from 103667-11) 4134616 in.named can hang when calling res_mkquery (from 103667-10) 4127017 Inverse Query in BIND can crash system or gives root access to an attacker. 4127028 BIND does not properly bounds check memory references in server and resolver 4068577 libresolv.so.2 buffer overflow vulnerability per SNI-12 bulletin 4133571 BIND has /tmp vulnerabilities (from 103667-09) 4056997 BIND spoofing vulnerability per SNI-12 bulletin. Also CERT CA-97.22 1266187 function declaration in netdb.h wrong for non-ansi for 4.9.3 (from 103667-08) 4071167 libresolv.so.1 can cause threaded applications to deadlock via nss_dns.so.1 (from 103667-07) 4026266 DNS/sendmail patch 103667/102980 inconsistency on dataless clients 4008451 in.named should have a configurable listen(3N) backlog 4038360 Applications linked against libresolv.so.1 and running w/ 103663-05 fail 4037068 libresolv does not reread resolv.conf (from 103667-06) 4038360 Applications linked against libresolv.so.1 and running w/ 103663-05 fail 4037068 libresolv does not reread resolv.conf 4008451 in.named should have a configurable listen(3N) backlog (from 103667-05) 4018620 DNS server cache corruption and lost of root server A records. (from 103667-04) 1265838 nslookup takes to long to fail if /etc/resolv.conf is missing (from 103667-03) 1264386 BIND 4.9.3 integration not complete 4007986 libresolv conflict for libresolv.so.1 apps using DNS via NS switch (from 103667-02) 1247019 nslookup takes 90 seconds if /etc/resolv.conf file is missing (from 103667-01) 1238679 DNS spoofing is possible per Cern ca-96.02 (from 103703-01) 1253600 nss_dns.so.1 source modification and rebuild for BIND 4.9.3 Patch Installation Instructions: -------------------------------- Refer to the Install.info file within the patch for instructions on using the generic 'installpatch' and 'backoutpatch' scripts provided with each patch. Any other special or non-generic installation instructions should be described below. Special Install Instructions: ----------------------------- Please refer to the file called BIND_493 that came with this patch. This document will describe the difference between libresolv.so.1 and libresolv.so.2 and it should provide the BIND 4.9.3 man pages. It is recommended to install the following patches: 102980-07 or newer sendmail patch 103279-02 or newer nscd/nscd_nischeck rebuild for BIND 4.9.3 103708-01 or newer rpc.nisd_resolv rebuild for BIND 4.9.3 README -- Last modified date: Wednesday, April 25, 2001