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EnGarde Secure Linux Advisory: kernel

Jan 07, 2004, 16:58 (0 Talkback[s])

Guardian Digital Security Advisory January 05, 2003
http://www.guardiandigital.com ESA-20040105-001
Package: kernel
Summary: bug and security 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.


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.


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:



Guardian Digital's public key:

Official Web Site of the Linux Kernel:

Guardian Digital Advisories:

Security Contact: security@guardiandigital.com

Author: Ryan W. Maple <ryan@guardiandigital.com>
Copyright 2004, Guardian Digital, Inc.