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HistoryJan 08, 2010 - 9:46 p.m.

[SECURITY] [DSA 1968-1] New pdns-recursor packages fix potential code execution


Debian Security Advisory DSA-1968-1 Florian Weimer
January 08, 2010

Package : pdns-recursor
Vulnerability : several
Problem type : remote
Debian-specific: no
CVE Id(s) : CVE-2009-4009 CVE-2009-4010

It was discovered that pdns-recursor, the PowerDNS recursive name
server, contains several vulnerabilities:

A buffer overflow can be exploited to crash the daemon, or potentially
execute arbitrary code (CVE-2009-4009).

A cache poisoning vulnerability may allow attackers to trick the
server into serving incorrect DNS data (CVE-2009-4010).

For the old stable distribution (etch), fixed packages will be
provided soon.

For the stable distribution (lenny), these problems have been fixed in
version 3.1.7-1+lenny1.

For the unstable distribution (sid), these problems have been fixed in

We recommend that you upgrade your pdns-recursor package.

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 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:
Size/MD5 checksum: 211760 38c58fef666685d6756da97baf9b4d51
Size/MD5 checksum: 1654 fff9beb43eec355ca42d93d53c1ce299
Size/MD5 checksum: 14769 8794fecd11f1b014592e2a36d40aaaf6

alpha architecture (DEC Alpha)
Size/MD5 checksum: 545726 dc05fab76c0fcb051b9a428cfa126061

amd64 architecture (AMD x86_64 (AMD64))
Size/MD5 checksum: 440822 365fc4da2fd1770f8e62f1a3a0046231

i386 architecture (Intel ia32)
Size/MD5 checksum: 440686 ac26d27658892619ce539921796bce67

ia64 architecture (Intel ia64)
Size/MD5 checksum: 631308 f80c2d28ee6d9ebdbf6cad177c8fbddd

powerpc architecture (PowerPC)
Size/MD5 checksum: 463434 f0bba833d4231bb2237433373e888a12

s390 architecture (IBM S/390)
Size/MD5 checksum: 428138 994a5190fa0f73b49252bee0a695fb4d

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

For apt-get: deb stable/updates main
For dpkg-ftp: dists/stable/updates/main
Mailing list:
Package info: `apt-cache show <pkg>' and;pkg&gt;

How to protect your server from attacks?

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