#VU13225 Error handling in Cisco Systems, Inc products - CVE-2018-0316

Vulnerability identifier: #VU13225

Vulnerability risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-0316

CWE-ID: CWE-388

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco 8800 Series IP Phones
Hardware solutions / Office equipment, IP-phones, print servers
Cisco 7800 Series IP Phones
Hardware solutions / Office equipment, IP-phones, print servers
Cisco 6800 Series IP Phones
Hardware solutions / Office equipment, IP-phones, print servers

Vendor: Cisco Systems, Inc

Description

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

The vulnerability exists in the Session Initiation Protocol (SIP) call-handling functionality of Cisco IP Phone 6800, 7800, and 8800 Series Phones with Multiplatform Firmware due to improper handling of errors that could occur when an incoming phone call is not answered. A remote attacker can send a set of maliciously crafted SIP packets and cause the affected phone to reload unexpectedly.

Mitigation
Update to version 11.1(2).

Vulnerable software versions

Cisco 8800 Series IP Phones: before 11.1.2

Cisco 7800 Series IP Phones: before 11.1.2

Cisco 6800 Series IP Phones: before 11.1.2

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-multiplatfor...

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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.