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    Debian: New pdns-recursor packages fix cache poisoning vulnerability

    Date 09 Apr 2008
    3032
    Posted By LinuxSecurity Advisories
    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.
    - ----------------------------------------------------------------------
    Debian Security Advisory DSA-1544-1                This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                         Florian Weimer
    April 09, 2008                      https://www.debian.org/security/faq
    - ----------------------------------------------------------------------
    
    Package        : pdns-recursor
    Vulnerability  : design flaw
    Problem type   : remote
    Debian-specific: no
    CVE Id(s)      : CVE-2008-1637
    
    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)
    
    For the stable distribution (etch), these problems have been fixed in
    version 3.1.4-1+etch1.
    
    For the unstable distribution (sid), these problems have been fixed in
    version 3.1.5-1.
    
    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 4.0 alias etch
    - -------------------------------
    
    Source archives:
    
      https://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch1.dsc
        Size/MD5 checksum:     1198 e2afc6418e2640188aed92a15d852842
      https://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4.orig.tar.gz
        Size/MD5 checksum:   171270 e35d774e3282285a59a7f8038a036b61
      https://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch1.diff.gz
        Size/MD5 checksum:    34268 21442fd6cb034c874ae2c353d1bcd968
    
    alpha architecture (DEC Alpha)
    
      https://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch1_alpha.deb
        Size/MD5 checksum:   499010 6dd67b8950e778d9d2fd35114f5fc8f7
    
    amd64 architecture (AMD x86_64 (AMD64))
    
      https://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch1_amd64.deb
        Size/MD5 checksum:   418316 ef549047ec6885aa2f1b908442822c5f
    
    i386 architecture (Intel ia32)
    
      https://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch1_i386.deb
        Size/MD5 checksum:   433732 dd69d1d790baa0637d42252196efa646
    
    ia64 architecture (Intel ia64)
    
      https://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch1_ia64.deb
        Size/MD5 checksum:   598084 6ea10a12ccdcca4bd7c8975dbdd84da0
    
    powerpc architecture (PowerPC)
    
      https://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch1_powerpc.deb
        Size/MD5 checksum:   434082 74ac592edef429defa9236fb4773e065
    
    s390 architecture (IBM S/390)
    
      https://security.debian.org/pool/updates/main/p/pdns-recursor/pdns-recursor_3.1.4-1+etch1_s390.deb
        Size/MD5 checksum:   408786 6abd81fab60ae0f87b97d7ccaa1b098c
    
    
      These files will probably be moved into the stable distribution on
      its next update.
    
    - ---------------------------------------------------------------------------------
    For apt-get: deb https://security.debian.org/ stable/updates main
    For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    

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