full-disclosure - [OpenPKG-SA-2004.039] OpenPKG Security Advisory (kerberos)

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Message-ID: <OpenPKG-SA-2004.039@openpkg.org>
From: openpkg at openpkg.org (OpenPKG)
Subject: [OpenPKG-SA-2004.039] OpenPKG Security Advisory (kerberos)

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________________________________________________________________________

OpenPKG Security Advisory                            The OpenPKG Project
http://www.openpkg.org/security.html              http://www.openpkg.org
openpkg-security@...npkg.org                         openpkg@...npkg.org
OpenPKG-SA-2004.039                                          13-Sep-2004
________________________________________________________________________

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

Affected Releases:   Affected Packages:         Corrected Packages:
OpenPKG CURRENT      <= kerberos-1.3.4-20040730 >= kerberos-1.3.4-20040901
OpenPKG 2.1          <= kerberos-1.3.4-2.1.0    >= kerberos-1.3.4-2.1.1
OpenPKG 2.0          <= kerberos-1.3.1-2.0.1    >= kerberos-1.3.1-2.0.2

Dependent Packages:  none

Description:
  According to two vendor security advisories [1][2], multiple
  vulnerabilities exists in the Kerberos [0] network authentication
  system. The first set of problems are double-free issues in the KDC
  and libraries. The second problem is a denial-of-service vulnerability
  in the ASN.1 decoder. The Common Vulnerabilities and Exposures (CVE)
  project assigned the ids CAN-2004-0642 [3], CAN-2004-0643 [4],
  CAN-2004-0644 [5] and CAN-2004-0772 [6] to the problems.

  Please check whether you are affected by running "<prefix>/bin/openpkg
  rpm -q kerberos". If you have the "kerberos" package installed and its
  version is affected (see above), we recommend that you immediately
  upgrade it (see Solution) [7][8].

Solution:
  Select the updated source RPM appropriate for your OpenPKG release
  [9][10], fetch it from the OpenPKG FTP service [11][12] or a mirror
  location, verify its integrity [13], build a corresponding binary
  RPM from it [7] and update your OpenPKG installation by applying the
  binary RPM [8]. For the most recent release OpenPKG 2.1, perform the
  following operations to permanently fix the security problem (for
  other releases adjust accordingly).

  $ ftp ftp.openpkg.org
  ftp> bin
  ftp> cd release/2.1/UPD
  ftp> get kerberos-1.3.4-2.1.1.src.rpm
  ftp> bye
  $ <prefix>/bin/openpkg rpm -v --checksig kerberos-1.3.4-2.1.1.src.rpm
  $ <prefix>/bin/openpkg rpm --rebuild kerberos-1.3.4-2.1.1.src.rpm
  $ su -
  # <prefix>/bin/openpkg rpm -Fvh <prefix>/RPM/PKG/kerberos-1.3.4-2.1.1.*.rpm
________________________________________________________________________

References:
  [0]  http://web.mit.edu/kerberos/
  [1]  http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2004-002-dblfree.txt
  [2]  http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2004-003-asn1.txt
  [3]  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0642
  [4]  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0643
  [5]  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0644
  [6]  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0772
  [7]  http://www.openpkg.org/tutorial.html#regular-source
  [8]  http://www.openpkg.org/tutorial.html#regular-binary
  [9]  ftp://ftp.openpkg.org/release/2.1/UPD/kerberos-1.3.4-2.1.1.src.rpm
  [10] ftp://ftp.openpkg.org/release/2.0/UPD/kerberos-1.3.1-2.0.2.src.rpm
  [11] ftp://ftp.openpkg.org/release/2.1/UPD/
  [12] ftp://ftp.openpkg.org/release/2.0/UPD/
  [13] http://www.openpkg.org/security.html#signature
________________________________________________________________________

For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG <openpkg@...npkg.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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