[OpenPKG-SA-2003.006] OpenPKG Security Advisory (python)

From: OpenPKG (openpkgat_private)
Date: Thu Jan 23 2003 - 02:38:46 PST

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    ________________________________________________________________________
    
    OpenPKG Security Advisory                            The OpenPKG Project
    http://www.openpkg.org/security.html              http://www.openpkg.org
    openpkg-securityat_private                         openpkgat_private
    OpenPKG-SA-2003.006                                          23-Jan-2003
    ________________________________________________________________________
    
    Package:             python
    Vulnerability:       predictable filename allows arbitrary code execution
    OpenPKG Specific:    no
    
    Affected Releases:   Affected Packages:          Corrected Packages:
    OpenPKG CURRENT      <= python-2.2.1-20020820    >= python-2.2.2-20021015
    OpenPKG 1.2          none                        N.A.
    OpenPKG 1.1          <= python-2.2.1-1.1.0       >= python-2.2.1-1.1.1
    
    Affected Releases:   Dependent Packages: none
    
    Description:
      Zack Weinberg discovered an insecure use of a predictable file name
      [0] in the Python programming language [1]. Python attempts to execute
      a file which is assumed to not exist just to find out what error
      the operating system returns in this situation. It uses a constant
      filename for this task which could lead to the execution of arbitrary
      code. The Common Vulnerabilities and Exposures (CVE) project assigned
      the id CAN-2002-1119 [2] to the problem.
    
      Please check whether you are affected by running "<prefix>/bin/rpm -q
      python". If you have the "python" 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], fetch it from the OpenPKG FTP service [6] or a mirror location,
      verify its integrity [7], build a corresponding binary RPM from it [3]
      and update your OpenPKG installation by applying the binary RPM [4].
      For the release OpenPKG 1.1, perform the following operations to
      permanently fix the security problem (for other releases adjust
      accordingly).
    
      $ ftp ftp.openpkg.org
      ftp> bin
      ftp> cd release/1.1/UPD
      ftp> get python-2.2.1-1.1.1.src.rpm
      ftp> bye
      $ <prefix>/bin/rpm -v --checksig python-2.2.1-1.1.1.src.rpm
      $ <prefix>/bin/rpm --rebuild python-2.2.1-1.1.1.src.rpm
      $ su -
      # <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/python-2.2.1-1.1.1.*.rpm
    ________________________________________________________________________
    
    References:
      [0] http://mail.python.org/pipermail/python-dev/2002-August/027223.html
      [1] http://www.python.org/
      [2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1119
      [3] http://www.openpkg.org/tutorial.html#regular-source
      [4] http://www.openpkg.org/tutorial.html#regular-binary
      [5] ftp://ftp.openpkg.org/release/1.1/UPD/python-2.2.1-1.1.1.src.rpm
      [6] ftp://ftp.openpkg.org/release/1.1/UPD/
      [7] http://www.openpkg.org/security.html#signature
    ________________________________________________________________________
    
    For security reasons, this advisory was digitally signed with
    the OpenPGP public key "OpenPKG <openpkgat_private>" (ID 63C4CB9F)
    of the OpenPKG project which you can find under the official URL
    http://www.openpkg.org/openpkg.pgp or on http://keyserver.pgp.com/. To
    check the integrity of this advisory, verify its digital signature by
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    ________________________________________________________________________
    
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