CVE-2017-6633: Buffer Overflow

Published May 22, 2017
·
Updated

A vulnerability in the TCP throttling process of Cisco UCS C-Series Rack Servers 3.0(0.234) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient rate-limiting protection. An attacker could exploit this vulnerability by sending a high rate of TCP SYN packets to a specific TCP listening port on an affected device. An exploit could allow the attacker to cause a specific TCP listening port to stop accepting new connections, resulting in a DoS condition. Cisco Bug IDs: CSCva65544.

Affected Software

5 affected components
Cisco Unified Computing System=3.0\(0.234\)
Cisco Ucs C220 M4 Rack Server
Cisco Ucs C240 M4 Rack Server
Cisco Ucs C3160 Rack Server
Cisco Ucs C460 M4 Rack Server

Event History

May 22, 2017
CVE Published
via MITRE·01:00 AM
Data Sourced
via MITRE·01:00 AM
DescriptionWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2017-6633?

The severity of CVE-2017-6633 is classified as high, as it could allow an unauthenticated, remote attacker to cause a denial of service.

2

How do I fix CVE-2017-6633?

To fix CVE-2017-6633, it is recommended to update to a version of Cisco UCS C-Series Rack Servers that includes patched software addressing this vulnerability.

3

What causes CVE-2017-6633?

CVE-2017-6633 is caused by insufficient rate-limiting protection in the TCP throttling process of affected Cisco UCS C-Series Rack Servers.

4

Is my device affected by CVE-2017-6633?

Devices using Cisco Unified Computing System software version 3.0(0.234) are affected by CVE-2017-6633.

5

Can CVE-2017-6633 be exploited remotely?

Yes, CVE-2017-6633 can be exploited remotely by an unauthenticated attacker to trigger a denial of service condition.

Contact

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