Date: Fri, 7 Mar 2003 11:23:03 -0500 (EST)
From: EnGarde Secure Linux <[email protected]>
To: [email protected], [email protected]Subject: [ESA-20030307-007] 'snort' RPC preprocessor buffer overflow.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
+------------------------------------------------------------------------+
| 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:
a) be booted into a "standard" kernel; or
b) 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: [email protected]
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 <[email protected]>
Copyright 2003, Guardian Digital, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see http://www.gnupg.org
iD8DBQE+aMduHD5cqd57fu0RAqaBAKCbEwb5NdZ1FXSQsqyOmWhFjMt2hACfZuDf
zU4rxmp61ahktrfqW01LVJs=
=HIq4
-----END PGP SIGNATURE-----
