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| Guardian Digital Security Advisory                        May 15, 2003 |
| http://www.guardiandigital.com                        ESA-20030515-017 |
|                                                                        |
| Package: kernel                                                        |
| Summary: several bug and security-related fixes.                       |
+------------------------------------------------------------------------+

  EnGarde Secure Linux is an enterprise class Linux platform engineered
  to enable corporations to quickly and cost-effectively build a complete
  and secure Internet presence while preventing Internet threats.

OVERVIEW
- --------
  This kernel update fixes several bugs and vulnerabilities.  A summary
  of the changes from the last kernel update are below.

    * Systems with more then one swap partition defined could OOPS when
      "swapoff -a" was run.

    * This update improves the kernel module loader vulnerability fix
      (CAN-2003-0127) initially fixed in ESA-20030318-009.

    * Using specially selected forged source addresses, a remote attacker
      can cause a very large number of collisions in the kernel's
      networking hash tables, resulting in a denial of service attack.

      The Common Vulnerabilities and Exposures project (cve.mitre.org) has
      assigned the name CAN-2003-0244 to this issue.

    * The "ioperm" system call does not properly restrict privileges,
      potentially allowing an unprivileged local user access to the I/O
      ports on the system.

      The Common Vulnerabilities and Exposures project (cve.mitre.org) has
      assigned the name CAN-2003-0246 to this issue.

  Guardian Digital products affected by these issues include:

    EnGarde Secure Community 2
    EnGarde Secure Professional v1.5

  It is recommended that all users apply this update as soon as possible.

SOLUTION
- --------
  Guardian Digital Secure Network subscribers may automatically update
  affected systems by accessing their account from within the Guardian
  Digital WebTool.

  To modify your GDSN account and contact preferences, please go to:

    https://www.guardiandigital.com/account/

REFERENCES
- ----------
  Guardian Digital's public key:
    http://ftp.engardelinux.org/pub/engarde/ENGARDE-GPG-KEY

  Official Web Site of the Linux Kernel:
    http://www.kernel.org/

  Guardian Digital Advisories:
    http://infocenter.guardiandigital.com/advisories/

  Security Contact: security@guardiandigital.com

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Author: Ryan W. Maple <ryan@guardiandigital.com>
Copyright 2003, Guardian Digital, Inc.

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