bugtraq - Immunix Secured OS 7+ cvs update

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Date: Mon, 7 Apr 2003 12:25:31 -0700
From: Immunix Security Team <security@...ex.com>
To: bugtraq@...urityfocus.com, immunix-announce@...unix.org,
	linsec@...ts.seifried.org
Subject: Immunix Secured OS 7+ cvs update

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

Packages updated:	cvs
Affected products:	ImmunixOS 7.0, 7+
Bugs fixed:		CAN-2003-0015
Date:			Wed Apr  2 2003
Advisory ID:		IMNX-2003-7+-004-01
Author:			Seth Arnold <sarnold@...ex.com>
-----------------------------------------------------------------------

Description:
  Stefan Esser discovered a double free() bug in CVS that can be
  remotely exploited by anonymous users to gain write access to the CVS
  repository. This write access can be converted into execute access
  using the CVS protocol commands "Checkin-prog" and "Update-prog".

  Igor Dobrovitski: "The impact of a successful exploitation is not
  that great: an unprivileged access to the system, where your calls to
  getuid() will return a number that's far from 0 (cvs drops provileges,
  and does it right)."

  We did not disable the Checkin-prog and Update-prog protocol commands;
  be aware that granting CVS write access is tantamount to also giving
  execute access on the repository.

  References: http://security.e-matters.de/advisories/012003.html
  http://www.securityfocus.com/archive/1/309913/2003-02-01/2003-02-04/0

Package names and locations:
  Precompiled binary packages for Immunix 7+ are available at:
  http://download.immunix.org/ImmunixOS/7+/Updates/RPMS/cvs-1.11.1p1-4_imnx_2.i386.rpm

Immunix OS 7+ md5sums:
  543c97b146ef652d2a8497e83822ffc2  cvs-1.11.1p1-4_imnx_2.i386.rpm

GPG verification:                                                               
  Our public key is available at <http://wirex.com/security/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 security@...ex.com. WireX 
  attempts to conform to the RFP vulnerability disclosure protocol
  <http://www.wiretrip.net/rfp/policy.html>.

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