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Cisco Firewall Services Module ICMP Message Denial of Service
Secunia Advisory: SA36373
Release Date: 2009-08-20
Popularity: 1,537 views

Critical:
Moderately critical
Impact: DoS
Where: From remote
Solution Status: Vendor Patch

Software:Cisco Firewall Services Module (FWSM) 2.x
Cisco Firewall Services Module (FWSM) 3.x
Cisco Firewall Services Module (FWSM) 4.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
A vulnerability has been reported in Cisco Firewall Services Module (FWSM), which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error in one of the NPs (Network Processors) when handling certain ICMP traffic, which may result in all available execution threads being exhausted. This can be exploited via multiple specially crafted ICMP messages to cause the module to stop forwarding traffic and stop accepting management traffic until reloaded.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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