1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200703-01 / snort |
| Release Date | February 23, 2007 |
| Latest Revision | March 02, 2007: 02 |
| Impact | high |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| net-analyzer/snort | < 2.6.1.3 | >= 2.6.1.3 | All supported architectures |
Related bugreports: #167730
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-2.6.1.3" |