OBSOLETE Patch-ID# 103664-15
Keywords: security DNS libresolv.so.2 CERT BIND in.named named-xfer nss_dns.so.1
Synopsis: Obsoleted by: 103664-16 SunOS 5.5.1_x86: libresolv in.named named-xfer nslookup & nstest patch
Date: Dec/14/1998

Solaris Release: 2.5.1_x86

SunOS Release: 5.5.1_x86

Unbundled Product: 

Unbundled Release: 

Xref: This patch available for SPARC as patch 103663

Topic: SunOS 5.5.1_x86: libresolv,in.named,named-xfer,nslookup & nstest patch

Relevant Architectures: i386

BugId's fixed with this patch: 1238679 1247019 1253600 1264386 1265838 1266187 4007986 4008451 4018620 4037068 4038360 4056997 4068577 4071167 4081667 4127017 4127028 4133340 4133571 4134616 4149227

Changes incorporated in this version: 4134616

Patches accumulated and obsoleted by this patch: 103684-01

Patches which conflict with this patch: 
	NOTE:  Refer to Special Install Instructions section for 
               IMPORTANT specific information on this patch.
	NOTE:iss_x86-01 (or newer)


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:

4134616 in.named can hang when calling res_mkquery
(from 103664-14)
4149227 103612-41 causes ldd to throw out unresolved references in libdl.so.1
(from 103664-13)
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 103664-12)
4133340 res_send can hang in recvfrom after bogus select/poll return
(from 103664-11)
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 103664-10)
4071167 libresolv.so.1 can cause threaded applications to deadlock via nss_dns.so.1
(from 103664-09)
4081667 in.named 4.9.3.p1 segmentation fault ns_resp+0x40ac (servfail)
(from 103664-08)
4038360 Applications linked against libresolv.so.1 and running w/ 103663-05 fail
4037068 libresolv does not reread resolv.conf
(from 103664-07)
	This patch is recranked to workaround bug 4010430 -- installpatch
	should ignore a required patch when not applicable to a target
	system.  The workaround is to include an empty root sparse patch
	package.  This will allow patch dependency requirement to be
	met in a server/client configuration.
(from 103664-06)
4008451 in.named should have a configurable listen(3N) backlog
(from 103664-05)
4018620 DNS server cache corruption and lost of root server A records.
(from 103664-04)
1265838 nslookup takes to long to fail if /etc/resolv.conf is missing
(from 103664-03)
1264386 BIND 4.9.3 integration not complete
4007986 libresolv conflict for libresolv.so.1 apps using DNS via NS switch
(from 103664-02)
1247019 nslookup takes 90 seconds if /etc/resolv.conf file is missing
(from 103664-01)
1238679 DNS spoofing is possible per Cern ca-96.02
(from 103684-01)
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:
-----------------------------
NOTE 1:   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:
		103595-03 (or newer)   sendmail patch
		103681-01 (or newer)   nscd/nscd_nischeck rebuild for BIND 4.9.3
		103687-01 (or newer)   rpc.nisd_resolv rebuild for BIND 4.9.3
NOTE 2:  TO GET THE COMPLETE FIX FOR BUGID FOR 4149227 (103612-41
         causes ldd to throw out unresolved references in libdl.so.1),
         ONE ALSO NEEDS TO INSTALL THE FOLLOWING PATCHES:
                103628-05 (or newer)   linker patch
                103641-23 (or newer)   libthread/KU patch
                105733-02 (or newer)   libxfn patch
                103613-44 (or newer)   libc/libnsl patch

README -- Last modified date:  Wednesday, April 25, 2001

