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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200703-01] Snort: Remote execution of arbitrary code


Vulnerability Assessment Details

[GLSA-200703-01] Snort: Remote execution of arbitrary code

Vulnerability Assessment Summary
Snort: Remote execution of arbitrary code

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200703-01
(Snort: Remote execution of arbitrary code)


The Snort DCE/RPC preprocessor does not properly reassemble certain
types of fragmented SMB and DCE/RPC packets.

Impact

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.

Workaround

Disable the DCE/RPC processor by commenting 'preprocessor rpc_decode'
and 'include $RULE_PATH/rpc.rules' from /etc/snort/snort.conf .

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5276


Solution:
All Snort users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/snort-2.6.1.3"


Network Security Threat Level: High


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2007 Michel Arboi

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