[Full-Disclosure] [OpenPKG-SA-2004.013] OpenPKG Security Advisory (cvs)

[OpenPKG <openpkg@xxxxxxxxxxx>]

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OpenPKG Security Advisory                            The OpenPKG Project
http://www.openpkg.org/security.html              http://www.openpkg.org
openpkg-security@xxxxxxxxxxx                         openpkg@xxxxxxxxxxx
OpenPKG-SA-2004.013                                          14-Apr-2004
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Package:             cvs
Vulnerability:       remote code execution
OpenPKG Specific:    no

Affected Releases:   Affected Packages:          Corrected Packages:
OpenPKG CURRENT      <= cvs-1.12.6-20040413      >= cvs-1.12.7-20040414
OpenPKG 2.0          <= cvs-1.12.5-2.0.0         >= cvs-1.12.5-2.0.1
OpenPKG 1.3          <= cvs-1.12.1-1.3.3         >= cvs-1.12.1-1.3.4

Dependent Packages:  none

Description:
  Sebastian Krahmer from the SuSE Security Team discovered [1] a flaw
  in Concurrent Versions System (CVS) [0] clients where RCS "diff
  files" can create files with absolute pathnames. An attacker could
  create a fake malicious CVS server that would cause arbitrary files
  to be created or overwritten when a victim connects to it. The
  Common Vulnerabilities and Exposures (CVE) project assigned the id
  CAN-2004-0180 [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-1.12.5-2.0.1.src.rpm
  ftp> bye
  $ <prefix>/bin/openpkg rpm -v --checksig cvs-1.12.5-2.0.1.src.rpm
  $ <prefix>/bin/openpkg rpm --rebuild cvs-1.12.5-2.0.1.src.rpm
  $ su -
  # <prefix>/bin/openpkg rpm -Fvh <prefix>/RPM/PKG/cvs-1.12.5-2.0.1.*.rpm
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References:
  [0] http://www.cvshome.org/
  [1] http://www.suse.com/de/security/2004_08_cvs.html
  [2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0180
  [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-1.12.1-1.3.4.src.rpm
  [6] ftp://ftp.openpkg.org/release/2.0/UPD/cvs-1.12.5-2.0.1.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
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For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG <openpkg@xxxxxxxxxxx>" (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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