EnGarde Secure Linux Advisory: kernel

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 update fixes two security issues and one critical bug in the
Linux Kernel shipped with EnGarde Secure Linux.

A summary of the bugs fixed:

• An EnGarde-specific memory leak in the LIDS code has been
  fixed. This memory leak could cause a machine, over time, to freeze
  up.
• A security vulnerability in the mremap(2) system call was
  recently discovered by Paul Starzetz. The incorrect bounds checking
  done in this system call could be exploited by a local user to gain
  root privileges.

  The Common Vulnerabilities and Exposures project (cve.mitre.org/) has assigned the name
  CAN-2003-0985 to this issue.

• A somewhat less critical vulnerability has been found in the
  Linux RTC code. This vulnerability may leak small bits of arbitrary
  kernel memory to user land.

  The Common Vulnerabilities and Exposures project (cve.mitre.org/) has assigned the name
  CAN-2003-0984 to this issue.

Guardian Digital products affected by this issue 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

Author: Ryan W. Maple <ryan@guardiandigital.com>

Copyright 2004, Guardian Digital, Inc.