engarde-users March 2003 archive
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engarde-users: [EnGarde] [ESA-20030307-007] 'snort' RPC preproce

[EnGarde] [ESA-20030307-007] 'snort' RPC preprocessor buffer overflow.

From: EnGarde Secure Linux <security_at_nospam>
Date: Fri Mar 07 2003 - 16:23:03 GMT
To: engarde-security@guardiandigital.com, "" <bugtraq@securityfocus.com>

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| EnGarde Secure Linux Security Advisory March 7, 2003 |
| http://www.engardelinux.org/ ESA-20030307-007 |
| |
| Package: snort |
| Summary: RPC preprocessor buffer overflow. |
+------------------------------------------------------------------------+

  EnGarde Secure Linux is a secure distribution of Linux that features   improved access control, host and network intrusion detection, Web   based secure remote management, e-commerce, and integrated open source   security tools.

OVERVIEW
- --------
  Recently ISS X-Force discovered a buffer overflow vulnerability in the   RPC preprocessor of the snort IDS system. A remote attacker could send   fragmented RPC records and cause snort to execute arbitrary code as the   snort user.

  To fix this vulnerability we have upgraded snort to the latest stable   version (1.9.1). All users are recommended to upgrade as soon as   possible.

  The Common Vulnerabilities and Exposures project (cve.mitre.org) has   assigned the name CAN-2003-0033 to this issue.

SOLUTION
- --------
  Users of the EnGarde Professional edition can use the Guardian Digital   Secure Network to update their systems automatically.

  EnGarde Community users should upgrade to the most recent version   as outlined in this advisory. Updates may be obtained from:

    ftp://ftp.engardelinux.org/pub/engarde/stable/updates/     http://ftp.engardelinux.org/pub/engarde/stable/updates/

  Before upgrading the package, the machine must either:

  1. be booted into a "standard" kernel; or
  2. have LIDS disabled.

  To disable LIDS, execute the command:

    # /sbin/lidsadm -S -- -LIDS_GLOBAL

  To install the updated package, execute the command:

    # rpm -Uvh files

  You must now update the LIDS configuration by executing the command:

    # /usr/sbin/config_lids.pl

  To re-enable LIDS (if it was disabled), execute the command:

    # /sbin/lidsadm -S -- +LIDS_GLOBAL

  To verify the signatures of the updated packages, execute the command:

    # rpm -Kv files

UPDATED PACKAGES - ----------------
  These updated packages are for EnGarde Secure Linux Community   Edition.

  Source Packages:

    SRPMS/snort-1.9.1-1.0.9.src.rpm
      MD5 Sum: 75c62b1b492c40fad751130951fc42d7

  Binary Packages:

    i386/snort-1.9.1-1.0.9.i386.rpm
      MD5 Sum: 5aa3f13b4f79cb27021517056a6c2f7c

    i686/snort-1.9.1-1.0.9.i686.rpm
      MD5 Sum: f379ae963718c32e46aacbf65941c404

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

  Snort's Official Web Site:
    http://www.snort.org/

  Security Contact: security@guardiandigital.com   EnGarde Advisories: http://www.engardelinux.org/advisories.html

  • -------------------------------------------------------------------------- $Id: ESA-20030307-007-snort,v 1.1 2003/03/07 16:15:04 rwm Exp $
  • -------------------------------------------------------------------------- Author: Ryan W. Maple <ryan@guardiandigital.com> Copyright 2003, Guardian Digital, Inc.

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