[Immunix-announce] Immunix Secured OS 7+ wu-ftpd update

securityat_private

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	Immunix Secured OS Security Advisory

Packages updated:	wu-ftpd
Affected products:	Immunix OS 7+
Bugs fixed:		CAN-2003-0466
Date:			Wed Aug  6 2003
Advisory ID:		IMNX-2003-7+-019-01
Author:			Seth Arnold <sarnoldat_private>
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Description:
  Janusz Niewiadomski has discovered an off-by-one vulnerability in
  wu-ftpd's fb_realpath function; this function is called with arguments
  occasionally on the stack and occasionally statically allocated.
  Therefore, StackGuard's protection should not be relied upon to
  prevent exploitation of this vulnerability, though it may mitigate a
  specific exploit, should one appear.

  It is beleived this flaw is remotely exploitable. It is not known at
  this time if the Immunix GLibC system library is vulnerable to a
  similar flaw.

  Immunix would like to thank Janusz for working with vendors to solve
  this issue in a timely manner.

Package names and locations:
  Precompiled binary packages for Immunix 7+ are available at:
  http://download.immunix.org/ImmunixOS/7+/Updates/RPMS/wu-ftpd-2.6.1-6_imnx_8.i386.rpm

Immunix OS 7+ md5sums:
  d1811ef4c936fa80f59cd0ce916acfa8  wu-ftpd-2.6.1-6_imnx_8.i386.rpm

GPG verification:                                                               
  Our public key is available at http://download.immunix.org/GPG_KEY

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 securityat_private
  Immunix attempts to conform to the RFP vulnerability disclosure protocol
  http://www.wiretrip.net/rfp/policy.html.