Visit our newest sister site!
Hundreds of free aircraft flight manuals
Civilian • Historical • Military • Declassified • FREE!

TUCoPS :: Linux :: Apps N-Z :: bt1147.txt

sendmail remote root

Hash: SHA1


OpenPKG Security Advisory                            The OpenPKG Project                   
OpenPKG-SA-2003.041                                          19-Sep-2003

Package:             sendmail
Vulnerability:       remote root exploit
OpenPKG Specific:    no

Affected Releases:   Affected Packages:          Corrected Packages:
OpenPKG CURRENT      <= sendmail-8.12.9-20030801 >= sendmail-8.12.10-20030917
OpenPKG 1.3          <= sendmail-8.12.9-1.3.0    >= sendmail-8.12.9-1.3.1
OpenPKG 1.2          <= sendmail-8.12.7-1.2.3    >= sendmail-8.12.7-1.2.4

Dependent Packages:  none

  According to a confirmed [1] security advisory from Michal Zalewski
  [2], a remotely exploitable vulnerability exists in all versions
  prior to 8.12.10 of the Sendmail [0] MTA. An error in its prescan()
  function could allow an attacker to write past the end of a buffer,
  corrupting memory structures. Depending on platform and operating
  system architecture, the attacker may be able to execute arbitrary
  code with a specially crafted email message.
  The email attack vector is message-oriented as opposed to
  connection-oriented. This means that the vulnerability is triggered
  by the contents of a specially crafted email message rather than by
  lower-level network traffic. The Common Vulnerabilities and Exposures
  (CVE) project assigned the id CAN-2003-0694 [3] to the problem.

  Additionally, we have included a fix for a potential buffer overflow
  in Sendmail's ruleset parsing. This problem is not exploitable in the
  default Sendmail configuration; it is exploitable only if non-standard
  rulesets recipient (2), final (4), or mailer-specific envelope
  recipients rulesets are used. The Common Vulnerabilities and Exposures
  (CVE) project assigned the id CAN-2003-0681 [4] to this problem.

  Please check whether you are affected by running "<prefix>/bin/rpm
  -q sendmail". If you have the "sendmail" package installed and its
  version is affected (see above), we recommend that you immediately
  upgrade it (see Solution) [5][6]

  Select the updated source RPM appropriate for your OpenPKG release
  [7][8], fetch it from the OpenPKG FTP service [9][10] or a mirror
  location, verify its integrity [11], build a corresponding binary
  RPM from it [5] and update your OpenPKG installation by applying the
  binary RPM [6]. For the current release OpenPKG 1.3, perform the
  following operations to permanently fix the security problem (for
  other releases adjust accordingly).

  $ ftp
  ftp> bin
  ftp> cd release/1.3/UPD
  ftp> get sendmail-8.12.9-1.3.1.src.rpm
  ftp> bye
  $ <prefix>/bin/rpm -v --checksig sendmail-8.12.9-1.3.1.src.rpm
  $ <prefix>/bin/rpm --rebuild sendmail-8.12.9-1.3.1.src.rpm
  $ su -
  # <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/sendmail-8.12.9-1.3.1.*.rpm


For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG <>" (ID 63C4CB9F) of the
OpenPKG project which you can retrieve from and
hkp:// Follow the instructions on
for details on how to verify the integrity of this advisory.

Comment: OpenPKG <>


TUCoPS is optimized to look best in Firefox® on a widescreen monitor (1440x900 or better).
Site design & layout copyright © 1986-2015 AOH