Buffer overflow in Cisco NX-OS - CVE-2018-0308

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Main Vulnerability Database Vulnerabilities #VU13439

Buffer overflow in Cisco NX-OS - CVE-2018-0308

Published: June 20, 2018 / Updated: June 25, 2018


Vulnerability identifier: #VU13439
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-0308
CWE-ID: CWE-120
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.

The vulnerability exists in the Cisco Fabric Services component due to buffer overflow when insufficient validation of header values in Cisco Fabric Services packets. A remote unauthenticated attacker can send a specially crafted Cisco Fabric Services packet, trigger memory corruption and cause the service to crash or execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

Cisco NX-OS
Cisco FXOS
UCS 6300 Series Fabric Interconnects
UCS 6200 Series Fabric Interconnects
UCS 6100 Series Fabric Interconnects

How to mitigate CVE-2018-0308

Install update from vendor's website.


External References

Related Security Bulletins