Vulnerability identifier: #VU10123

Vulnerability risk: Low

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0086

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Unified Customer Voice Portal
Server applications / Other server solutions

Vendor: Cisco Systems, Inc

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the application server of the Cisco Unified Customer Voice Portal (CVP) due to malformed SIP INVITE traffic received on the CVP during communications with the Cisco Virtualized Voice Browser (VVB). A remote attacker can send malformed SIP INVITE traffic to the targeted appliance trigger memory exhaustion and cause the system to crash.

Mitigation
Update to version 11.6(1).

Vulnerable software versions

Cisco Unified Customer Voice Portal: 10.5 - 11.5

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180117-cvp

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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.