bugtraq - Immunix Secured OS 7+ sendmail update

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Date: Wed, 17 Sep 2003 20:53:03 -0700
From: Immunix Security Team <security@...unix.com>
To: bugtraq@...urityfocus.com
Subject: Immunix Secured OS 7+ sendmail update

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-----------------------------------------------------------------------
	Immunix Secured OS Security Advisory

Packages updated:	sendmail
Affected products:	Immunix OS 7+
Bugs fixed:		CAN-2003-0681, CAN-2003-0694
Date:			Wed Sep 17 2003
Advisory ID:		IMNX-2003-7+-021-01
Author:			Seth Arnold <sarnold@...unix.com>
-----------------------------------------------------------------------

Description:
  Michal Zalewski discovered flaws in sendmail's prescan() function.
  prescan() is used sufficiently frequently in the sendmail sources that
  it is not clear where the overflowed buffers are located in memory,
  thus administrators should assume that StackGuard provides limited
  coverage at best. This flaw is CAN-2003-0694.

  Timo Sirainen has discovered CAN-2003-0681, "a potential buffer
  overflow in ruleset parsing which is not exploitable in the default
  sendmail configuration; only if non-standard rulesets recipient (2),
  final (4), or mailer-specific envelope recipients rulesets are used
  then a problem may occur."

  Immunix would like to thank Claus Assmann, Ademar de Souza Reis Jr,
  and Todd C. Miller.

Package names and locations:
  Precompiled binary packages for Immunix 7+ are available at:
  http://download.immunix.org/ImmunixOS/7+/Updates/RPMS/sendmail-8.11.6-3_imnx_6.i386.rpm
  http://download.immunix.org/ImmunixOS/7+/Updates/RPMS/sendmail-cf-8.11.6-3_imnx_6.i386.rpm
  http://download.immunix.org/ImmunixOS/7+/Updates/RPMS/sendmail-doc-8.11.6-3_imnx_6.i386.rpm

  A source package for Immunix 7+ is located here:
  http://download.immunix.org/ImmunixOS/7+/Updates/SRPMS/sendmail-8.11.6-3_imnx_6.src.rpm

Immunix OS 7+ md5sums:
  cf0da9af59b3ce5ef3415ef165ed5acf RPMS/sendmail-8.11.6-3_imnx_6.i386.rpm
  d7e44a404f9208d5d5e831146ebee81f RPMS/sendmail-cf-8.11.6-3_imnx_6.i386.rpm
  580f5f35079dff0d523c79b8f903add0 RPMS/sendmail-doc-8.11.6-3_imnx_6.i386.rpm
  3811d5cb46c9309ec7ebf894b4fb709e SRPMS/sendmail-8.11.6-3_imnx_6.src.rpm

GPG verification:                                                               
  Our public keys are available at http://download.immunix.org/GPG_KEY
  Immunix, Inc., has changed policy with GPG keys. We maintain several
  keys now: C53B2B53 for Immunix 7+ package signing, D3BA6C17 for
  Immunix 7.3 package signing, and 1B7456DA for general security issues.

NOTE:
  Ibiblio is graciously mirroring our updates, so if the links above are
  slow, please try:
    ftp://ftp.ibiblio.org/pub/Linux/distributions/immunix/
  or one of the many mirrors available at:
    http://www.ibiblio.org/pub/Linux/MIRRORS.html

  ImmunixOS 6.2 is no longer officially supported.
  ImmunixOS 7.0 is no longer officially supported.

Contact information:
  To report vulnerabilities, please contact security@...unix.com.
  Immunix attempts to conform to the RFP vulnerability disclosure protocol
  http://www.wiretrip.net/rfp/policy.html.

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