#VU13430 Buffer overflow in Cisco NX-OS - CVE-2018-0292

Vulnerability identifier: #VU13430

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-0292

CWE-ID: CWE-120

Exploitation vector: Local network

Exploit availability: No

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

Vendor: Cisco Systems, Inc

Description

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

The vulnerability exists in the Internet Group Management Protocol (IGMP) Snooping feature due to boundary error when handling malicious input. An adjacent attacker can send a specially crafted IGMP packets, trigger memory corruption and cause the service to crash or execute arbitrary code and gain full control of the affected system.

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

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-nxosigmp

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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 local network (LAN).

Is there known malware, which exploits this vulnerability?

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