[Full-Disclosure] [OpenPKG-SA-2003.051] OpenPKG Security Advisory (rsync)

From: OpenPKG (openpkg_at_openpkg.org)
Date: 12/04/03

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    Date: Thu, 4 Dec 2003 17:05:09 +0100

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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-2003.051 04-Dec-2003

    Package: rsync
    Vulnerability: arbitrary code execution
    OpenPKG Specific: no

    Affected Releases: Affected Packages: Corrected Packages:
    OpenPKG CURRENT <= rsync-2.5.6-20030807 >= rsync-2.5.7-20031204
    OpenPKG 1.3 <= rsync-2.5.6-1.3.0 >= rsync-2.5.6-1.3.1
    OpenPKG 1.2 <= rsync-2.5.5-1.2.0 >= rsync-2.5.5-1.2.1

    Dependent Packages: none

      According to a rsync security advisory [0], a heap overflow
      vulnerability exists in rsync [1] version 2.5.6 and earlier when used
      as a rsync server which typically listens on TCP port 873. An exploit
      is already known. A successful attack can lead to arbitrary code
      execution in the run-time environment of the rsync server process. The
      attack is known to be considerably easier when the "use chroot = no"
      option is set in rsync.conf, which is not the default in OpenPKG. The
      Common Vulnerabilities and Exposures (CVE) project assigned the id
      CAN-2003-0962 [2] to the problem.

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

      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 current release OpenPKG 1.3, perform the following
      operations to permanently fix the security problem (for other releases
      adjust accordingly).

      $ ftp ftp.openpkg.org
      ftp> bin
      ftp> cd release/1.3/UPD
      ftp> get rsync-2.5.6-1.3.1.src.rpm
      ftp> bye
      $ <prefix>/bin/rpm -v --checksig rsync-2.5.6-1.3.1.src.rpm
      $ <prefix>/bin/rpm --rebuild rsync-2.5.6-1.3.1.src.rpm
      $ su -
      # <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/rsync-2.5.6-1.3.1.*.rpm

      [0] http://marc.theaimsgroup.com/?l=rsync-announce&m=107051741303720
      [1] http://rsync.samba.org/
      [2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0962
      [3] http://www.openpkg.org/tutorial.html#regular-source
      [4] http://www.openpkg.org/tutorial.html#regular-binary
      [5] ftp://ftp.openpkg.org/release/1.2/UPD/rsync-2.5.5-1.2.1.src.rpm
      [6] ftp://ftp.openpkg.org/release/1.3/UPD/rsync-2.5.6-1.3.1.src.rpm
      [7] ftp://ftp.openpkg.org/release/1.2/UPD/
      [8] ftp://ftp.openpkg.org/release/1.3/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.

    Comment: OpenPKG <openpkg@openpkg.org>

    -----END PGP SIGNATURE-----

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