Joined: 12 May 2004
|Posted: Fri Mar 02, 2007 1:26 am Post subject: [ GLSA 200703-01 ] Snort: Remote execution of arbitrary code
|Gentoo Linux Security Advisory
Title: Snort: Remote execution of arbitrary code (GLSA 200703-01)
Date: February 23, 2007
Updated: March 02, 2007
The Snort DCE/RPC preprocessor contains a buffer overflow that could result in the remote execution of arbitrary code.
Snort is a widely deployed intrusion detection program.
Vulnerable: < 220.127.116.11
Unaffected: >= 18.104.22.168
Architectures: All supported architectures
The Snort DCE/RPC preprocessor does not properly reassemble certain types of fragmented SMB and DCE/RPC packets.
A remote attacker could send specially crafted fragmented SMB or DCE/RPC packets, without the need to finish the TCP handshake, that would trigger a stack-based buffer overflow while being reassembled. This could lead to the execution of arbitrary code with the permissions of the user running the Snort preprocessor.
Disable the DCE/RPC processor by commenting the 'preprocessor dcerpc' section in /etc/snort/snort.conf .
All Snort users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/snort-22.214.171.124"
Last edited by GLSA on Thu Oct 23, 2008 4:19 am; edited 3 times in total