Debian: New postgrey packages fix denial of service

    Date23 Jul 2006
    CategoryDebian
    4929
    Posted ByLinuxSecurity Advisories
    Peter Bieringer discovered that postgrey, an greylisting implementation for Postfix, is vulnerable to a format string attack that allows remote attackers to the daemon.
    - --------------------------------------------------------------------------
    Debian Security Advisory DSA 1121-1                    This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                             Martin Schulze
    July 24th, 2006                         http://www.debian.org/security/faq
    - --------------------------------------------------------------------------
    
    Package        : postgrey
    Vulnerability  : format string
    Problem type   : remote
    Debian-specific: no
    CVE ID         : CVE-2005-1127
    
    Peter Bieringer discovered that postgrey, an greylisting
    implementation for Postfix, is vulnerable to a format string attack
    that allows remote attackers to the daemon.
    
    For the stable distribution (sarge) this problem has been fixed in
    version 1.21-1sarge1.
    
    For the stable distribution (sarge) this problem has also been fixed
    in version 1.21-1volatile4 in the volatile archive.
    
    For the unstable distribution (sid) this problem has been fixed in
    version 1.22-1.
    
    We recommend that you upgrade your postgrey 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 at the end of this advisory:
    
    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 3.1 alias sarge
    - --------------------------------
    
      Source archives:
    
        http://security.debian.org/pool/updates/main/p/postgrey/postgrey_1.21-1sarge1.dsc
          Size/MD5 checksum:      628 2a0d8c903c9f47b374a9fa871056b5df
        http://security.debian.org/pool/updates/main/p/postgrey/postgrey_1.21-1sarge1.diff.gz
          Size/MD5 checksum:    13354 96eefd0e11745edf1cce5fa833d83396
        http://security.debian.org/pool/updates/main/p/postgrey/postgrey_1.21.orig.tar.gz
          Size/MD5 checksum:    25934 1274e073be5178445e0892a9dcc6fe98
    
      Architecture independent components:
    
        http://security.debian.org/pool/updates/main/p/postgrey/postgrey_1.21-1sarge1_all.deb
          Size/MD5 checksum:    41526 43de6a5366b7df928212489a84ec127f
    
    
      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
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