Debian Security Advisory
DSA-1544-2 pdns-recursor -- design flaw
- Date Reported:
- 16 Jul 2008
- Affected Packages:
- pdns-recursor
- Vulnerable:
- Yes
- Security database references:
- In Mitre's CVE dictionary: CVE-2008-1637, CVE-2008-3217.
- More information:
-
Amit Klein discovered that pdns-recursor, a caching DNS resolver, uses a weak random number generator to create DNS transaction IDs and UDP source port numbers. As a result, cache poisoning attacks were simplified. (CVE-2008-1637 and CVE-2008-3217)
For the stable distribution (etch), these problems have been fixed in version 3.1.4-1+etch2.
For the unstable distribution (sid), these problems have been fixed in version 3.1.7-1.
We recommend that you upgrade your pdns-recursor package.
- Fixed in:
-
Debian GNU/Linux 4.0 (etch)
- Source:
- http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch2.dsc
- http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4.orig.tar.gz
- http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch2.diff.gz
- http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4.orig.tar.gz
- Alpha:
- http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch2_alpha.deb
- AMD64:
- http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch2_amd64.deb
- Intel IA-32:
- http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch2_i386.deb
- Intel IA-64:
- http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch2_ia64.deb
- PowerPC:
- http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch2_powerpc.deb
- IBM S/390:
- http://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch2_s390.deb
MD5 checksums of the listed files are available in the original advisory.