AusCERT - AU-2008.0017 -- AusCERT Update - [UNIX/Linux]

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AU-2008.0017 -- AusCERT Update - [UNIX/Linux] - BIND -P2 releases now available
Date: 04 August 2008
References: AL-2008.0080

Click here for printable version
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Hash: SHA1

AusCERT Update AU-2008.0017 - [UNIX/Linux]
BIND -P2 releases now available
4 August 2008

        AusCERT Update Summary
        ----------------------

Product:              BIND 9.5.0
                      BIND 9.4.2
                      BIND 9.3.5
Publisher:            ISC
Operating System:     UNIX variants (UNIX, Linux, OSX)
Impact:               Provide Misleading Information
Access:               Remote/Unauthenticated
CVE Names:            CVE-2008-1447

Ref:                  AL-2008.0080

Comment: Note that there are three ISC advisories in this bulletin.
         
         Updates to Windows BIND will be available shortly.

- --------------------------BEGIN INCLUDED TEXT--------------------

	    BIND 9.5.0-P2 is now available.

This is the SECOND security patch for BIND 9.5.0, addressing
performance and stability issues in BIND 9.5.0-P1.  Key features
are as follows:

- - performance improvement over the P1 releases, namely
   + significantly remedying the port allocation issues
   + allowing TCP queries and zone transfers while issuing as many
      outstanding UDP queries as possible
   + additional security of port randomization at the same level as P1
- - also includes fixes for several bugs in the 9.5.0 base code

NOTE: There are some remaining stability problems in 9.5.0-P2 when
running under Microsoft Windows.  A fix has been implemented, but
missed the cutoff time for this release; it will be addressed in a
Windows-specific release very soon.

BIND 9.5.0-P2 can be downloaded from

        ftp://ftp.isc.org/isc/bind9/9.5.0-P2/bind-9.5.0-P2.tar.gz

The PGP signature of the distribution is at

        ftp://ftp.isc.org/isc/bind9/9.5.0-P2/bind-9.5.0-P2.tar.gz.asc
        ftp://ftp.isc.org/isc/bind9/9.5.0-P2/bind-9.5.0-P2.tar.gz.sha256.asc
        ftp://ftp.isc.org/isc/bind9/9.5.0-P2/bind-9.5.0-P2.tar.gz.sha512.asc

These signatures were generated with Paul Vixie's public key
(vixie@isc.org, key ID D297AB8E), which is stored on the keyserver
at pgp.mit.edu.

A binary kit for Windows 2000, Windows XP and Window 2003 is at

	ftp://ftp.isc.org/isc/bind9/9.5.0-P2/BIND9.5.0-P2.zip
	ftp://ftp.isc.org/isc/bind9/9.5.0-P2/BIND9.5.0-P2.debug.zip

The PGP signature of the binary kit for Windows 2000, Windows XP and
Window 2003 is at
        
	ftp://ftp.isc.org/isc/bind9/9.5.0-P2/BIND9.5.0-P2.zip.asc
	ftp://ftp.isc.org/isc/bind9/9.5.0-P2/BIND9.5.0-P2.zip.sha256.asc
	ftp://ftp.isc.org/isc/bind9/9.5.0-P2/BIND9.5.0-P2.zip.sha512.asc
	ftp://ftp.isc.org/isc/bind9/9.5.0-P2/BIND9.5.0-P2.debug.zip.asc
	ftp://ftp.isc.org/isc/bind9/9.5.0-P2/BIND9.5.0-P2.debug.zip.sha256.asc
	ftp://ftp.isc.org/isc/bind9/9.5.0-P2/BIND9.5.0-P2.debug.zip.sha512.asc

Changes since 9.5.0-P1:

	--- 9.5.0-P2 released ---

2406.   [bug]           Some operating systems have FD_SETSIZE set to a
			low value by default, which can cause resource
			exhaustion when many simultaneous connections are
			open.  Linux in particular makes it difficult to
			increase this value.  To use more sockets with
			select(), set ISC_SOCKET_FDSETSIZE.  Example:
			STD_CDEFINES="-DISC_SOCKET_FDSETSIZE@96" ./configure
			(This should not be necessary in most cases, and
			never for an authoritative-only server.) [RT #18328]

2405.   [cleanup]       The default value for dnssec-validation was changed to
			"yes" in 9.5.0-P1 and all subsequent releases; this
			was inadvertently omitted from CHANGES at the time.

2404.	[port]		hpux: files unlimited support.

2403.	[bug]		TSIG context leak. [RT #18341]

2402.	[port]		Support Solaris 2.11 and over. [RT #18362]

2401.	[bug]		Expect to get E[MN]FILE errno internal_accept()
			(from accept() or fcntl() system calls). [RT #18358]

2399.	[bug]		Abort timeout queries to reduce the number of open
			UDP sockets. [RT #18367]

2398.	[bug]           Improve file descriptor management.  New,
			temporary, named.conf option reserved-sockets,
			default 512. [RT #18344]

2397.	[bug]		gssapi_functions had too many elements. [RT #18355]

2396.	[bug]		Don't set SO_REUSEADDR for randomized ports.
			[RT #18336]

2395.	[port]		Avoid warning and no effect from "files unlimited"
			on Linux when running as root. [RT #18335]

2394.	[bug]		Default configuration options set the limit for
			open files to 'unlimited' as described in the
			documentation. [RT #18331]

2393.   [bug]           nested acls containing keys could trigger an
			assertion in acl.c. [RT #18166]

2392.	[bug]		remove 'grep -q' from acl test script, some platforms
			don't support it. [RT #18253]

2387.	[bug]		Silence compiler warnings in lib/isc/radix.c.
			[RT #18147] [RT #18258]

==============================================================================

	    BIND 9.4.2-P2 is now available.

This is the SECOND security patch for BIND 9.4.2, addressing
performance and stability issues in BIND 9.4.2-P1.  Key features
are as follows:

- - performance improvement over the P1 releases, namely
   + significantly remedying the port allocation issues
   + allowing TCP queries and zone transfers while issuing as many
      outstanding UDP queries as possible
   + additional security of port randomization at the same level as P1

NOTE: There are some remaining stability problems in 9.4.2-P2 when
running under Microsoft Windows.  A fix has been implemented, but
missed the cutoff time for this release; it will be addressed in a
Windows-specific release very soon.

BIND 9.4.2-P2 can be downloaded from

        ftp://ftp.isc.org/isc/bind9/9.4.2-P2/bind-9.4.2-P2.tar.gz

The PGP signature of the distribution is at

        ftp://ftp.isc.org/isc/bind9/9.4.2-P2/bind-9.4.2-P2.tar.gz.asc
        ftp://ftp.isc.org/isc/bind9/9.4.2-P2/bind-9.4.2-P2.tar.gz.sha256.asc
        ftp://ftp.isc.org/isc/bind9/9.4.2-P2/bind-9.4.2-P2.tar.gz.sha512.asc

These signatures were generated with Paul Vixie's public key
(vixie@isc.org, key ID D297AB8E), which is stored on the keyserver
at pgp.mit.edu.

A binary kit for Windows 2000, Windows XP and Window 2003 is at

	ftp://ftp.isc.org/isc/bind9/9.4.2-P2/BIND9.4.2-P2.zip
	ftp://ftp.isc.org/isc/bind9/9.4.2-P2/BIND9.4.2-P2.debug.zip

The PGP signature of the binary kit for Windows 2000, Windows XP and
Window 2003 is at
        
	ftp://ftp.isc.org/isc/bind9/9.4.2-P2/BIND9.4.2-P2.zip.asc
	ftp://ftp.isc.org/isc/bind9/9.4.2-P2/BIND9.4.2-P2.zip.sha256.asc
	ftp://ftp.isc.org/isc/bind9/9.4.2-P2/BIND9.4.2-P2.zip.sha512.asc
	ftp://ftp.isc.org/isc/bind9/9.4.2-P2/BIND9.4.2-P2.debug.zip.asc
	ftp://ftp.isc.org/isc/bind9/9.4.2-P2/BIND9.4.2-P2.debug.zip.sha256.asc
	ftp://ftp.isc.org/isc/bind9/9.4.2-P2/BIND9.4.2-P2.debug.zip.sha512.asc

Changes since 9.4.2-P1:

	--- 9.4.2-P2 released ---

2406.   [bug]           Some operating systems have FD_SETSIZE set to a
			low value by default, which can cause resource
			exhaustion when many simultaneous connections are
			open.  Linux in particular makes it difficult to
			increase this value.  To use more sockets with
			select(), set ISC_SOCKET_FDSETSIZE.  Example:
			STD_CDEFINES="-DISC_SOCKET_FDSETSIZE@96" ./configure
			(This should not be necessary in most cases, and
			never for an authoritative-only server.) [RT #18328]

2404.	[port]		hpux: files unlimited support.

2403.	[bug]		TSIG context leak. [RT #18341]

2402.	[port]		Support Solaris 2.11 and over. [RT #18362]

2401.	[bug]		Expect to get E[MN]FILE errno internal_accept()
			(from accept() or fcntl() system calls). [RT #18358]

2399.	[bug]		Abort timeout queries to reduce the number of open
			UDP sockets. [RT #18367]

2398.	[bug]           Improve file descriptor management.  New,
			temporary, named.conf option reserved-sockets,
			default 512. [RT #18344]

2396.	[bug]		Don't set SO_REUSEADDR for randomized ports.
			[RT #18336]

2395.	[port]		Avoid warning and no effect from "files unlimited"
			on Linux when running as root. [RT #18335]

2394.	[bug]		Default configuration options set the limit for
			open files to 'unlimited' as described in the
			documentation. [RT #18331]

2392.	[bug]		remove 'grep -q' from acl test script, some platforms
			don't support it. [RT #18253]

2322.	[port]		MacOS: work around the limitation of setrlimit()
			for RLIMIT_NOFILE. [RT #17526]

=============================================================================

	    BIND 9.3.5-P2 is now available.

This is the SECOND security patch for BIND 9.3.5, addressing
performance and stability issues in BIND 9.3.5-P1.  Key features
are as follows:

- - performance improvement over the P1 releases, namely
   + significantly remedying the port allocation issues
   + allowing TCP queries and zone transfers while issuing as many
      outstanding UDP queries as possible
   + additional security of port randomization at the same level as P1

NOTE: There are some remaining stability problems in 9.3.5-P2 when
running under Microsoft Windows.  A fix has been implemented, but
missed the cutoff time for this release; it will be addressed in a
Windows-specific release very soon.

BIND 9.3.5-P2 can be downloaded from

        ftp://ftp.isc.org/isc/bind9/9.3.5-P2/bind-9.3.5-P2.tar.gz

The PGP signature of the distribution is at

        ftp://ftp.isc.org/isc/bind9/9.3.5-P2/bind-9.3.5-P2.tar.gz.asc
        ftp://ftp.isc.org/isc/bind9/9.3.5-P2/bind-9.3.5-P2.tar.gz.sha256.asc
        ftp://ftp.isc.org/isc/bind9/9.3.5-P2/bind-9.3.5-P2.tar.gz.sha512.asc

These signatures were generated with Paul Vixie's public key
(vixie@isc.org, key ID D297AB8E), which is stored on the keyserver
at pgp.mit.edu.

A binary kit for Windows 2000, Windows XP and Window 2003 is at

	ftp://ftp.isc.org/isc/bind9/9.3.5-P2/BIND9.3.5-P2.zip
	ftp://ftp.isc.org/isc/bind9/9.3.5-P2/BIND9.3.5-P2.debug.zip

The PGP signature of the binary kit for Windows 2000, Windows XP and
Window 2003 is at
        
	ftp://ftp.isc.org/isc/bind9/9.3.5-P2/BIND9.3.5-P2.zip.asc
	ftp://ftp.isc.org/isc/bind9/9.3.5-P2/BIND9.3.5-P2.zip.sha256.asc
	ftp://ftp.isc.org/isc/bind9/9.3.5-P2/BIND9.3.5-P2.zip.sha512.asc
	ftp://ftp.isc.org/isc/bind9/9.3.5-P2/BIND9.3.5-P2.debug.zip.asc
	ftp://ftp.isc.org/isc/bind9/9.3.5-P2/BIND9.3.5-P2.debug.zip.sha256.asc
	ftp://ftp.isc.org/isc/bind9/9.3.5-P2/BIND9.3.5-P2.debug.zip.sha512.asc

Changes since 9.3.5-P1:

	--- 9.3.5-P2 released ---

2406.   [bug]           Some operating systems have FD_SETSIZE set to a
			low value by default, which can cause resource
			exhaustion when many simultaneous connections are
			open.  Linux in particular makes it difficult to
			increase this value.  To use more sockets with
			select(), set ISC_SOCKET_FDSETSIZE.  Example:
			STD_CDEFINES="-DISC_SOCKET_FDSETSIZE@96" ./configure
			(This should not be necessary in most cases, and
			never for an authoritative-only server.) [RT #18328]

2404.	[port]		hpux: files unlimited support.

2403.	[bug]		TSIG context leak. [RT #18341]

2402.	[port]		Support Solaris 2.11 and over. [RT #18362]

2401.	[bug]		Expect to get E[MN]FILE errno internal_accept()
			(from accept() or fcntl() system calls). [RT #18358]

2399.	[bug]		Abort timeout queries to reduce the number of open
			UDP sockets. [RT #18367]

2398.	[bug]           Improve file descriptor management.  New,
			temporary, named.conf option reserved-sockets,
			default 512. [RT #18344]

2396.	[bug]		Don't set SO_REUSEADDR for randomized ports.
			[RT #18336]

2395.	[port]		Avoid warning and no effect from "files unlimited"
			on Linux when running as root. [RT #18335]

2394.	[bug]		Default configuration options set the limit for
			open files to 'unlimited' as described in the
			documentation. [RT #18331]

2392.	[bug]		remove 'grep -q' from acl test script, some platforms
			don't support it. [RT #18253]

- --------------------------END INCLUDED TEXT--------------------

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NOTE: This is only the original release of the security bulletin.  It may
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Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================

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