CVE-2004-0551

Medium

Description

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."

SeverityMedium
CVSS5.0
Exploit probability—
ProductCisco Catos
PublishedAug 6, 2004
First seenAug 6, 2004

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
cisco catos2.1\(1\), 2.1\(2\), 2.1\(3\), 2.1\(4\), 2.1\(5\), 2.1\(6\), 2.1\(7\), 2.1\(8\), 2.1\(9\), 2.1\(10\), 2.1\(11\), 2.1\(12\), 2.2\(1\), 2.2\(2\), 2.3\(1\), 2.4\(1\), 2.4\(2\), 2.4\(3\), 2.4\(4\), 2.4\(5\), 2.4\(5a\), 3.0\(7\), 3.1\(1\), 3.1\(2\), 3.1\(2a\), 3.2\(1\), 3.2\(1b\), 3.2\(2\), 3.2\(3\), 3.2\(4\), 3.2\(5\), 3.2\(6\), 3.2\(7\), 3.2\(8\)gdr, 4.1\(1\), 4.1\(2\), 4.1\(3\), 4.2\(1\), 4.2\(2\), 4.3\(1a\), 4.4\(1\), 4.5\(1\), 4.5\(2\), 4.5\(3\), 4.5\(4\), 4.5\(5\), 4.5\(6\), 4.5\(6a\), 4.5\(7\), 4.5\(8\), 4.5\(9\), 4.5\(10\), 4.5\(11\), 4.5\(12\), 4.5\(12a\), 4.5\(13\), 4.5\(13a\), 4.5\(14\), 5.1\(1\), 5.1\(1\)csx, 5.1\(1a\), 5.1\(1a\)csx, 5.1\(2a\), 5.1\(2b\), 5.2\(1\), 5.2\(1\)csx, 5.2\(2\), 5.2\(2\)csx, 5.2\(3\), 5.2\(3\)csx, 5.2\(3a\)csx, 5.2\(4\), 5.2\(5\), 5.2\(6\), 5.2\(7\), 5.2\(7a\), 5.3\(1a\)csx, 5.3\(2\)csx, 5.3\(3\)csx, 5.3\(4\)csx, 5.3\(5\)csx, 5.3\(5a\)csx, 5.3\(6\)csx, 5.3\(6a\)csx, 5.4, 5.4\(1\), 5.4\(1\)deferred, 5.4\(2\), 5.4\(2a\), 5.4\(3\), 5.4\(4\), 5.4\(4a\), 5.5, 5.5\(1\), 5.5\(1a\), 5.5\(2\), 5.5\(3\), 5.5\(4\), 5.5\(4a\), 5.5\(4b\), 5.5\(5\), 5.5\(6\), 5.5\(6a\), 5.5\(7\), 5.5\(7a\), 5.5\(8\), 5.5\(8a\), 5.5\(8a\)cv, 5.5\(9\), 5.5\(10\), 5.5\(10a\), 5.5\(11\), 5.5\(11a\), 5.5\(12\), 5.5\(12a\), 5.5\(13\), 5.5\(13.5\), 5.5\(13a\), 5.5\(14\), 5.5\(15\), 5.5\(16\), 5.5\(16.2\), 5.5\(17\), 5.5\(18\), 5.5\(19\), 6.1, 6.1\(1\), 6.1\(1a\), 6.1\(1b\), 6.1\(1c\), 6.1\(1d\), 6.1\(1e\), 6.1\(2\), 6.1\(2a\), 6.1\(3\), 6.1\(3a\), 6.1\(4\), 6.1\(4b\), 6.2\(1\), 6.2\(1a\), 6.2\(2\), 6.2\(2a\), 6.2\(3\), 6.2\(3a\), 6.3\(1\), 6.3\(1a\), 6.3\(2\), 6.3\(2a\), 6.3\(3\), 6.3\(3\)x, 6.3\(3\)x1, 6.3\(3a\), 6.3\(4\), 6.3\(4a\), 6.3\(5\), 6.3\(5.10\), 6.3\(6\), 6.3\(7\), 6.3\(8\), 6.3\(8.3\), 6.3\(9\), 6.3\(10\), 6.4\(1\), 6.4\(2\), 6.4\(3\), 6.4\(4a\), 6.4\(5\), 6.4\(6\), 6.4\(7\), 6.4\(8\), 7.1\(1\), 7.1\(1a\), 7.1\(2\), 7.1\(2a\), 7.2\(0.65\), 7.2\(1\), 7.2\(2\), 7.3, 7.3\(1\), 7.3\(2\), 7.4, 7.4\(0.2\)clr, 7.4\(0.63\), 7.4\(1\), 7.4\(2\), 7.4\(3\), 7.5, 7.5\(1\), 7.6, 7.6\(1\), 7.6\(2\), 7.6\(3\), 7.6\(4\), 7.6\(5\), 8.1, 8.1\(2\), 8.1\(3\), 8.2, 8.2\(1\), 8.3\(1\)glx—

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