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TUCoPS :: Web :: Apache :: bt1361.txt

apache local buffer overflow





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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-2003.046                                          28-Oct-2003
________________________________________________________________________

Package:             apache
Vulnerability:       local buffer overflow
OpenPKG Specific:    no

Affected Releases:   Affected Packages:        Corrected Packages:
OpenPKG CURRENT      <= apache-1.3.28-20031009 >= apache-1.3.29-20031028
OpenPKG 1.3          <= apache-1.3.28-1.3.0    >= apache-1.3.28-1.3.1
OpenPKG 1.2          <= apache-1.3.27-1.2.2    >= apache-1.3.27-1.2.3

Dependent Packages:  none

Description:
  André Malo discovered buffer overflows [0] in the mod_alias and
  mod_rewrite modules of the Apache [1] webserver. These occurred if
  a regular expression with more than 9 capturing parenthesis was
  configured. To exploit this, an attacker would need to be able to
  locally create a carefully crafted configuration file (.htaccess or
  httpd.conf). The Common Vulnerabilities and Exposures (CVE) project
  assigned the id CAN-2003-0542 [2] to the problem.

  Please check whether you are affected by running "<prefix>/bin/rpm -q
  apache". If you have the "apache" 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 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 apache-1.3.28-1.3.1.src.rpm
  ftp> bye
  $ <prefix>/bin/rpm -v --checksig apache-1.3.28-1.3.1.src.rpm
  $ <prefix>/bin/rpm --rebuild apache-1.3.28-1.3.1.src.rpm
  $ su -
  # <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/apache-1.3.28-1.3.1.*.rpm
________________________________________________________________________

References:
  [0] http://marc.theaimsgroup.com/?l=apache-cvs&m=106701190026083
  [1] http://httpd.apache.org/
  [2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0542
  [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/apache-1.3.27-1.2.3.src.rpm
  [6] ftp://ftp.openpkg.org/release/1.3/UPD/apache-1.3.28-1.3.1.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.
________________________________________________________________________

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