#VU13446 Buffer over-read in Cisco NX-OS - CVE-2018-0310

Vulnerability identifier: #VU13446

Vulnerability risk: Medium

CVSSv4.0: 6.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-0310

CWE-ID: CWE-126

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco NX-OS
Operating systems & Components / Operating system

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information or cause DoS condition on the target system.

The vulnerability exists in the Cisco Fabric Services component due to buffer over-read 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 obtain sensitive information from memory or cause the service to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Cisco NX-OS: All versions

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-nx-os-fabric...

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.