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Debian Security Advisory DSA-1968-2                  security@debian.org
http://www.debian.org/security/                         Florian Weimer
January 28, 2010                   http://www.debian.org/security/faq
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Package        : pdns-recursor
Vulnerability  : DNS cache poisoning
Problem type   : remote
Debian-specific: no
CVE Id(s)      : CVE-2009-4010

It was discovered that pdns-recursor, the PowerDNS recursive name server,
contains a cache poisoning vulnerability which may allow attackers to trick the
server into serving incorrect DNS data (CVE-2009-4010).

This DSA provides a security update for the old stable distribution
(etch), similar to the previous update in DSA-1968-1.  (Note that the
etch version of pdns-recursor was not vulnerable to CVE-2009-4009.)

Extra care should be applied when installing this update.  It is an etch
backport of the lenny version of the package (3.1.7 with security fixes
applied). Major differences in internal domain name processing made
backporting just the security fix too difficult.

For the old stable distribution (etch), this problem has been fixed in
version 3.1.4+v3.1.7-0+etch1.

We recommend that you upgrade your pdns-recursor package.

Upgrade instructions
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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 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 4.0 alias etch
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Source archives:

  http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4+v3.1.7.orig.tar.gz
    Size/MD5 checksum:   211760 38c58fef666685d6756da97baf9b4d51
  http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4+v3.1.7-0+etch1.diff.gz
    Size/MD5 checksum:    14100 3872ac93703320db9257d421d011af66
  http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4+v3.1.7-0+etch1.dsc
    Size/MD5 checksum:     1227 b0ce0cdfa67a7759ec5f43dfe95b733e

alpha architecture (DEC Alpha)

  http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4+v3.1.7-0+etch1_alpha.deb
    Size/MD5 checksum:   580492 ae99c07e883f297f2f8cc1cef72a15c4

amd64 architecture (AMD x86_64 (AMD64))

  http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4+v3.1.7-0+etch1_amd64.deb
    Size/MD5 checksum:   486532 2b77a01f8594031e7fbb7b26d85e8bf8

i386 architecture (Intel ia32)

  http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4+v3.1.7-0+etch1_i386.deb
    Size/MD5 checksum:   506954 0fc7f125b55dddf38779a266a2a01e35

ia64 architecture (Intel ia64)

  http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4+v3.1.7-0+etch1_ia64.deb
    Size/MD5 checksum:   693478 117be1c8613bd0dc35e3303f15ced0d0

powerpc architecture (PowerPC)

  http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4+v3.1.7-0+etch1_powerpc.deb
    Size/MD5 checksum:   502984 ac3fa49c7889903425032190e514de31

s390 architecture (IBM S/390)

  http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4+v3.1.7-0+etch1_s390.deb
    Size/MD5 checksum:   472764 db2847b3a85417f380183dbd23007687


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

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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