Vulnerability Description
A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability exists because the affected software insufficiently validates Cisco Fabric Services packets when the software processes packet data. An attacker could exploit this vulnerability by sending a maliciously crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the device, which could cause process crashes and result in a DoS condition on the device. This vulnerability affects Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects, UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd69960, CSCve02463, CSCve04859, CSCve41530, CSCve41537, CSCve41541, CSCve41557.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Nx-Os | 7.0\(0\)hsk\(0.357\) |
| Cisco | Nexus 5000 | - |
| Cisco | Nexus 5010 | - |
| Cisco | Nexus 5020 | - |
| Cisco | Nexus 5548P | - |
| Cisco | Nexus 5548Up | - |
| Cisco | Nexus 5596T | - |
| Cisco | Nexus 5596Up | - |
| Cisco | Nexus 56128P | - |
| Cisco | Nexus 5624Q | - |
| Cisco | Nexus 5648Q | - |
| Cisco | Nexus 5672Up | - |
| Cisco | Nexus 5696Q | - |
| Cisco | Nexus 7000 | - |
| Cisco | Nexus 7700 | - |
| Cisco | Nexus 92160Yc-X | - |
| Cisco | Nexus 92304Qc | - |
| Cisco | Nexus 9236C | - |
| Cisco | Nexus 9272Q | - |
| Cisco | Nexus 93108Tc-Ex | - |
Related Weaknesses (CWE)
References
- http://www.securitytracker.com/id/1041169Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- http://www.securitytracker.com/id/1041169Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
FAQ
What is CVE-2018-0311?
CVE-2018-0311 is a vulnerability with a CVSS score of 7.5 (HIGH). A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on a...
How severe is CVE-2018-0311?
CVE-2018-0311 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-0311?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Nx-Os, Cisco Nexus 5000, Cisco Nexus 5010, Cisco Nexus 5020, Cisco Nexus 5548P.