Peter Bieringer discovered that postgrey, an greylisting implementation for Postfix, is vulnerable to a format string attack that allows remote attackers to the daemon.

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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
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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
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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 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
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  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.

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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
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