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MEDIUM · 5.0

CVE-2004-0551

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 ...

Vulnerability 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."

CVSS Score

5.0

MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P
Confidentiality
NONE
Integrity
NONE
Availability
PARTIAL

Affected Products

VendorProductVersions
CiscoCatos2.1\(1\)
CiscoCatalyst 2901All versions
CiscoCatalyst 2902All versions
CiscoCatalyst 2926All versions
CiscoCatalyst 2926FAll versions
CiscoCatalyst 2926GlAll versions
CiscoCatalyst 2926GsAll versions
CiscoCatalyst 2926TAll versions
CiscoCatalyst 2948All versions
CiscoCatalyst 2948-Ge-TxAll versions
CiscoCatalyst 2948G-L3All versions
CiscoCatalyst 2980GAll versions
CiscoCatalyst 2980G-AAll versions
CiscoCatalyst 4000All versions
CiscoCatalyst 4500All versions
CiscoCatalyst 4503All versions
CiscoCatalyst 4506All versions
CiscoCatalyst 4507RAll versions
CiscoCatalyst 4510RAll versions
CiscoCatalyst 4912GAll versions

References

FAQ

What is CVE-2004-0551?

CVE-2004-0551 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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 ...

How severe is CVE-2004-0551?

CVE-2004-0551 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2004-0551?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Catos, Cisco Catalyst 2901, Cisco Catalyst 2902, Cisco Catalyst 2926, Cisco Catalyst 2926F.