Security World: [SECURITY] [DSA 2054-1] New bind9 packages fix cache poisoning

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- ------------------------------------------------------------------------
Debian Security Advisory DSA-2054-1 security@debian.org
http://www.debian.org/security/ Florian Weimer
June 04, 2010 http://www.debian.org/security/faq
- ------------------------------------------------------------------------

Package : bind9
Vulnerability : DNS cache poisoning
Problem type : remote
Debian-specific: no
CVE Id(s) : CVE-2010-0097 CVE-2010-0290 CVE-2010-0382

Several cache-poisoning vulnerabilities have been discovered in BIND.
These vulnerabilities are apply only if DNSSEC validation is enabled and
trust anchors have been installed, which is not the default.

The Common Vulnerabilities and Exposures project identifies the
following problems:

CVE-2010-0097
BIND does not properly validate DNSSEC NSEC records, which allows
remote attackers to add the Authenticated Data (AD) flag to a forged
NXDOMAIN response for an existing domain.

CVE-2010-0290
When processing crafted responses containing CNAME or DNAME records,
BIND is subject to a DNS cache poisoning vulnerability, provided that
DNSSEC validation is enabled and trust anchors have been installed.

CVE-2010-0382
When processing certain responses containing out-of-bailiwick data,
BIND is subject to a DNS cache poisoning vulnerability, provided that
DNSSEC validation is enabled and trust anchors have been installed.

In addition, this update introduce a more conservative query behavior
in the presence of repeated DNSSEC validation failures, addressing the
"roll over and die" phenomenon. The new version also supports the
cryptographic algorithm used by the upcoming signed ICANN DNS root
(RSASHA256 from RFC 5702), and the NSEC3 secure denial of existence
algorithm used by some signed top-level domains.

This update is based on a new upstream version of BIND 9, 9.6-ESV-R1.
Because of the scope of changes, extra care is recommended when
installing the update. Due to ABI changes, new Debian packages are
included, and the update has to be installed using "apt-get
dist-upgrade" (or an equivalent aptitude command).

For the stable distribution (lenny), these problems have been fixed in
version 1:9.6.ESV.R1+dfsg-0+lenny1.

For the unstable distribution (sid), these problems have been fixed in
version 1:9.7.0.dfsg-1.

We recommend that you upgrade your bind9 packages.

Upgrade instructions
- --------------------

wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
will update the internal database
apt-get dist-upgrade
will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.

Debian GNU/Linux 5.0 alias lenny
- --------------------------------

Source archives:

http://security.debian.org/pool/updates/main/b/bind9/bind9_9.6.ESV.R1+dfsg-0+lenny1.diff.gz
Size/MD5 checksum: 45323 fb028cde990581e5d817ed23decc702a
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.6.ESV.R1+dfsg.orig.tar.gz
Size/MD5 checksum: 5132628 5ac7e5eadd45b234ce17b3b731dacc3a
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.6.ESV.R1+dfsg-0+lenny1.dsc
Size/MD5 checksum: 1794 b0b1eaf99cfa2d7d6357306185dac33b

Architecture independent packages:

http://security.debian.org/pool/updates/main/b/bind9/bind9-doc_9.6.ESV.R1+dfsg-0+lenny1_all.deb
Size/MD5 checksum: 281996 fdd2ac63c79f616b5707b1145f345c59

alpha architecture (DEC Alpha)

amd64 architecture (AMD x86_64 (AMD64))

arm architecture (ARM)

armel architecture (ARM EABI)

hppa architecture (HP PA RISC)

i386 architecture (Intel ia32)

ia64 architecture (Intel ia64)

mips architecture (MIPS (Big Endian))

mipsel architecture (MIPS (Little Endian))

powerpc architecture (PowerPC)

s390 architecture (IBM S/390)

sparc architecture (Sun SPARC/UltraSPARC)

These files will probably be moved into the stable distribution on
its next update.

- ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)

iQEcBAEBAgAGBQJMCVSVAAoJEL97/wQC1SS+4s4IAI3sRcZbGi8dGzUZ5yvaN71U
vvRmumL/Y/U7WcvaoI4FBiidY4OHk+SxKxdH4sehHUAyDzx2hbSN16ZhiYSUVgqk
uHBlohNxpuR1gBUurd2K7aKO+f6oxWALbL2Pbdj5U1R20WlqycT6zUaAWswMoDfd
ep/5STeqTDySFCweAU/zcrgx3tSlwiabuQx7R9AcBmpxNg19PyYXaQC++PcW/Non
lgBK4OOyBsjmasDFfJ9e0tK3ou52RWiNOVwx/srNriaCdReognRPHtNCdLE0QFFG
SgTwDvYTj/0kEcwdr8qE9WAK6lEM24P9DEbiRQzN4NAdE1BFPkEuanlgNhWGIf0=
=kbnz
-----END PGP SIGNATURE-----

--
To UNSUBSCRIBE, email to debian-security-announce-REQUEST@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
Archive: http://lists.debian.org/87sk524n7t.fsf@mid.deneb.enyo.de

Security World

Search This Blog

Friday, June 04, 2010

[SECURITY] [DSA 2054-1] New bind9 packages fix cache poisoning

No comments: