Snort: Remote execution of arbitrary code
Gentoo Linux Security Advisory
||GLSA 200703-01 / snort
||February 23, 2007
||March 02, 2007: 02
All supported architectures
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.
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:
Code Listing 3.1: Resolution
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/snort-126.96.36.199"