OpenPKG alert OpenPKG-SA-2004.022 (cvs)

From:
    	     
 
OpenPKG <openpkg@openpkg.org>
To:
    	     
 
openpkg-announce@openpkg.org
Subject:
    	     
 
[OpenPKG-SA-2004.022] OpenPKG Security Advisory (cvs)
Date:
    	     
 
Wed, 19 May 2004 21:50:15 +0200

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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-2004.022                                          19-May-2004
________________________________________________________________________

Package:             cvs
Vulnerability:       remote code execution
OpenPKG Specific:    no

Affected Releases:   Affected Packages:          Corrected Packages:
OpenPKG CURRENT      <= cvs-1.12.7-20040414      >= cvs-1.12.8-20040519
OpenPKG 2.0          <= cvs-1.12.5-2.0.1         >= cvs-1.12.5-2.0.2
OpenPKG 1.3          <= cvs-1.12.1-1.3.4         >= cvs-1.12.1-1.3.5

Dependent Packages:  none

Description:
  Stefan Esser discovered [1] a remote vulnerability in Concurrent
  Versions System (CVS) [0] servers. CVS up to version 1.12.7 contains
  a flaw when deciding if a CVS entry line should get a modified or
  unchanged flag attached. This results in a heap overflow which can
  be exploited to execute arbitrary code on the CVS server. This
  could allow a repository compromise. The Common Vulnerabilities and
  Exposures (CVE) project assigned the id CAN-2004-0396 [2] to the
  problem.

  Please check whether you are affected by running "<prefix>/bin/rpm
  -q cvs". If you have the "cvs" 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 cvs-1.12.5-2.0.2.src.rpm
  ftp> bye
  $ <prefix>/bin/openpkg rpm -v --checksig cvs-1.12.5-2.0.2.src.rpm
  $ <prefix>/bin/openpkg rpm --rebuild cvs-1.12.5-2.0.2.src.rpm
  $ su -
  # <prefix>/bin/openpkg rpm -Fvh <prefix>/RPM/PKG/cvs-1.12.5-2.0.2.*.rpm
________________________________________________________________________

References:
  [0] http://www.cvshome.org/
  [1] http://security.e-matters.de/advisories/072004.html
  [2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0396
  [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/cvs-1.12.1-1.3.5.src.rpm
  [6] ftp://ftp.openpkg.org/release/2.0/UPD/cvs-1.12.5-2.0.2.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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