Patch Name: PHNE_30007

Patch Description: s700_800 11.04 (VVOS) libnss_dns DNS backend patch

Creation Date: 03/11/06

Post Date: 03/11/14

Hardware Platforms - OS Releases:
	s700: 11.04
	s800: 11.04

Products: N/A

Filesets:
	NFS.NFS-SHLIBS,fr=B.11.04,fa=HP-UX_B.11.04_32/64,v=HP
	NFS.NFS-64SLIB,fr=B.11.04,fa=HP-UX_B.11.04_32/64,v=HP

Automatic Reboot?: No

Status: General Release

Critical:
	Yes
	PHNE_30007: ABORT
		Based on HP-UX Patch PHNE_29387:  ABORT
	PHNE_27881: ABORT
		Based on HP-UX Patch PHNE_27795:  ABORT

Category Tags:
	defect_repair general_release critical halts_system

Path Name: /hp-ux_patches/s700_800/11.X/PHNE_30007

Symptoms:
	PHNE_30007:
	Repackaged HP-UX patch PHNE_29387 to VVOS

	Based on HP-UX patch PHNE_29387:
	1. JAGae79455 / SR 8606316741
	   gethostbyaddr() may dump core when used with the third
	   party memory allocation and free routines, malloc() and
	   free(), respectively.

	2. JAGae82810 / SR 8606320326
	   gethostbyaddr() is not working properly.

	PHNE_27881:
	Repackaged HP-UX patch PHNE_27795 to VVOS

	Based on HP-UX patch PHNE_27795:
	1. JAGae35468 / SR 8606271239
	   Problem with DNS library resolver routines.

	2. JAGad85337 / SR 8606216167
	   Multithreaded processes are not thread-scalable during
	   DNS lookups using gethostbyname().

	3. JAGae52855 / SR 8606288924
	   If Special Release (SS) patch PHNE_27646 is installed
	   then sendmail is unable to receive mail messages from
	   certain domains.

Defect Description:
	PHNE_30007:
	Repackaged HP-UX patch PHNE_29387 to VVOS

	Based on HP-UX patch PHNE_29387:
	1. JAGae79455 / SR 8606316741
	   gethostbyaddr() uses dynamic memory allocation to store
	   the address data. Due to an address pointer corruption,
	   gethostbyaddr() tries to free the unallocated memory
	   space.
	Resolution:
	   gethostbyaddr() now uses static memory to store the
	   address data instead of dynamic memory.

	2. JAGae82810 / SR 8606320326
	   gethostbyaddr() was not handling hostnames properly.
	Resolution:
	   gethostbyaddr() now handles hostnames properly.

	PHNE_27881:
	Repackaged HP-UX patch PHNE_27795 to VVOS

	Based on HP-UX patch PHNE_27795:
	1. JAGae35468 / SR 8606271239
	   Under certain circumstances, the resolver incorrectly
	   calculates the available buffer size.
	Resolution:
	   The buffer size is now calculated properly.

	2. JAGad85337 / SR 8606216167
	   In a multi-threaded process, the threads calling
	   gethostbyname() are serialized because of a mutex
	   lock. This lock degrades the scalability of the process.
	Resolution:
	   The gethostbyname() and gethostbyaddr() are now
	   thread-scalable.

	3. JAGae52855 / SR 8606288924
	   sendmail uses gethostbyaddr() to resolve the address of
	   a client. gethostbyaddr() refers to the alias and
	   address pointer arrays during resolution. As the alias
	   and address pointer arrays are not properly formatted,
	   gethostbyaddr() may fail while parsing the DNS answer
	   packet containing, CNAME records followed by PTR records.
	Resolution:
	   The alias and address pointer arrays are now properly
	   formatted.

Enhancement:
	No

SR:
	8606316741 8606320326 8606271239 8606216167 8606288924

Patch Files:
	
	NFS.NFS-SHLIBS,fr=B.11.04,fa=HP-UX_B.11.04_32/64,v=HP:
	/usr/lib/libnss_dns.1

	NFS.NFS-64SLIB,fr=B.11.04,fa=HP-UX_B.11.04_32/64,v=HP:
	/usr/lib/pa20_64/libnss_dns.1

what(1) Output:
	
	NFS.NFS-SHLIBS,fr=B.11.04,fa=HP-UX_B.11.04_32/64,v=HP:
	/usr/lib/libnss_dns.1:
		$ PATCH/11.0:PHNE_29387 Jul 26 2003 08:28:17 $

	NFS.NFS-64SLIB,fr=B.11.04,fa=HP-UX_B.11.04_32/64,v=HP:
	/usr/lib/pa20_64/libnss_dns.1:
		$ PATCH/11.0:PHNE_29387 Jul 26 2003 08:28:17 $

cksum(1) Output:
	
	NFS.NFS-SHLIBS,fr=B.11.04,fa=HP-UX_B.11.04_32/64,v=HP:
	1969859215 20480 /usr/lib/libnss_dns.1

	NFS.NFS-64SLIB,fr=B.11.04,fa=HP-UX_B.11.04_32/64,v=HP:
	2999687163 18672 /usr/lib/pa20_64/libnss_dns.1

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes:
	PHNE_27881 

Equivalent Patches:
	PHNE_29387:
	s700: 11.00
	s800: 11.00

	PHNE_28299:
	s700: 11.22
	s800: 11.22

Patch Package Size: 40 KBytes

Installation Instructions:
	Please review all instructions and the Hewlett-Packard
	SupportLine User Guide or your Hewlett-Packard support terms
	and conditions for precautions, scope of license,
	restrictions, and, limitation of liability and warranties,
	before installing this patch.
	------------------------------------------------------------
	1. Back up your system before installing a patch.

	2. Login as root.

	3. Copy the patch to the /tmp directory.

	4. Move to the /tmp directory and unshar the patch:

		cd /tmp
		sh PHNE_30007

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHNE_30007.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHNE_30007.  If you do not wish to retain a
	copy of the original software, include the patch_save_files
	option in the swinstall command above:

		-x patch_save_files=false

	WARNING: If patch_save_files is false when a patch is installed,
		 the patch cannot be deinstalled.  Please be careful
		 when using this feature.

	For future reference, the contents of the PHNE_30007.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHNE_30007.depot

	To put this patch on a magnetic tape and install from the
	tape drive, use the command:

		dd if=/tmp/PHNE_30007.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None