Buffer overflow in Cisco Ucs C220 M4 Rack Server
CVE-2017-6633
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.021 (81.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- Cisco Ucs C220 M4 Rack Server
- Cisco Ucs C240 M4 Rack Server
- Cisco Ucs C3160 Rack Server
- Cisco Ucs C460 M4 Rack Server
- Cisco Unified Computing System — versions 3.0(0.234), 3.0\(0.234\)
- Cisco Ucs C-Series Rack Servers — versions Cisco UCS C-Series Rack Servers
Weakness classification (CWE)
References
- www.securitytracker.com/id/1038513 (vdb-entry)
- www.securityfocus.com/bid/98525 (VDB Entry, Third Party Advisory, vdb-entry)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517… (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-6633?
- CVE-2017-6633 is a high-severity vulnerability in Cisco Ucs C220 M4 Rack Server, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2017-05-22.
- How severe is CVE-2017-6633?
- High severity. CVSS v3 base score is 7.5 out of 10.