[OpenPKG-SA-2004.020] OpenPKG Security Advisory (ssmtp)

From: OpenPKG (openpkg_at_openpkg.org)
Date: 05/07/04

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    Date: Fri, 7 May 2004 22:01:55 +0200
    To: bugtraq@securityfocus.com
    
    

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    ________________________________________________________________________

    OpenPKG Security Advisory The OpenPKG Project
    http://www.openpkg.org/security.html http://www.openpkg.org
    openpkg-security@openpkg.org openpkg@openpkg.org
    OpenPKG-SA-2004.020 07-May-2004
    ________________________________________________________________________

    Package: ssmtp
    Vulnerability: denial of service, code execution
    OpenPKG Specific: no

    Affected Releases: Affected Packages: Corrected Packages:
    OpenPKG CURRENT <= ssmtp-2.48-20040207 >= ssmtp-2.60.8-20040507
    OpenPKG 2.0 <= ssmtp-2.48-2.0.0 >= ssmtp-2.48-2.0.1
    OpenPKG 1.3 <= ssmtp-2.48-1.3.0 >= ssmtp-2.48-1.3.1

    Dependent Packages: none

    Description:
      Two format string bugs were discovered in sSMTP [1], a simple
      sending-only Mail Transport Agent (MTA). Untrusted values in the
      functions die() and log_event() were passed to printf(3)-like
      functions as format strings. These vulnerabilities could potentially
      allow remote mail relays to cause a Denial of Service (DoS) and
      possibly execute arbitrary code. The Common Vulnerabilities and
      Exposures (CVE) project assigned the id CAN-2004-0156 [2] to the
      problem.

      Please check whether you are affected by running "<prefix>/bin/rpm -q
      ssmtp". If you have the "ssmtp" package installed and its version is
      affected (see above), we recommend that you immediately upgrade it
      (see Solution) [3][4].

    Solution:
      Select the updated source RPM appropriate for your OpenPKG release
      [5][6], fetch it from the OpenPKG FTP service [7][8] or a mirror
      location, verify its integrity [9], build a corresponding binary RPM
      from it [3] and update your OpenPKG installation by applying the
      binary RPM [4]. For the most recent release OpenPKG 2.0, perform the
      following operations to permanently fix the security problem (for
      other releases adjust accordingly).

      $ ftp ftp.openpkg.org
      ftp> bin
      ftp> cd release/2.0/UPD
      ftp> get ssmtp-2.48-2.0.1.src.rpm
      ftp> bye
      $ <prefix>/bin/openpkg rpm -v --checksig ssmtp-2.48-2.0.1.src.rpm
      $ <prefix>/bin/openpkg rpm --rebuild ssmtp-2.48-2.0.1.src.rpm
      $ su -
      # <prefix>/bin/openpkg rpm -Fvh <prefix>/RPM/PKG/ssmtp-2.48-2.0.1.*.rpm
    ________________________________________________________________________

    References:
      [1] ftp://ftp.debian.org/debian/pool/main/s/ssmtp/
      [2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0156
      [3] http://www.openpkg.org/tutorial.html#regular-source
      [4] http://www.openpkg.org/tutorial.html#regular-binary
      [5] ftp://ftp.openpkg.org/release/1.3/UPD/ssmtp-2.48-1.3.1.src.rpm
      [6] ftp://ftp.openpkg.org/release/2.0/UPD/ssmtp-2.48-2.0.1.src.rpm
      [7] ftp://ftp.openpkg.org/release/1.3/UPD/
      [8] ftp://ftp.openpkg.org/release/2.0/UPD/
      [9] http://www.openpkg.org/security.html#signature
    ________________________________________________________________________

    For security reasons, this advisory was digitally signed with the
    OpenPGP public key "OpenPKG <openpkg@openpkg.org>" (ID 63C4CB9F) of the
    OpenPKG project which you can retrieve from http://pgp.openpkg.org and
    hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org/
    for details on how to verify the integrity of this advisory.
    ________________________________________________________________________

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