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Tracker / CVE-2004-0551

CVE-2004-0551

Medium 5.0

Cisco CatOS 5.x before 5.5(20) through 8.x before 8.2(2) and 8.3(2)GLX, as used in Catalyst switches, allows remote attackers to cause a denial of service (system crash and reload) by sending invalid packets instead of the final ACK portion of the three-way handshake to the (1) Telnet, (2) HTTP, or (3) SSH services, aka "TCP-ACK DoS attack."

Affected products and versions

cisco catalyst_2901
cisco catalyst_2902
cisco catalyst_2926
cisco catalyst_2926f
cisco catalyst_2926gl
cisco catalyst_2926gs
cisco catalyst_2926t
cisco catalyst_2948
cisco catalyst_2948-ge-tx
cisco catalyst_2948g-l3
cisco catalyst_2980g
cisco catalyst_2980g-a
cisco catalyst_4000
cisco catalyst_4500
cisco catalyst_4503
cisco catalyst_4506
cisco catalyst_4507r
cisco catalyst_4510r
cisco catalyst_4912g
cisco catalyst_5000
cisco catalyst_6000_ws-svc-nam-1
cisco catalyst_6000_ws-svc-nam-2
cisco catalyst_6000_ws-x6380-nam
cisco catos

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References