CVE-2018-0316 Denial of service in Cisco IP Phone 6800, 7800, and 8800 Series unknown
Unauthenticated remote attackers can cause Cisco IP phones to reload unexpectedly via malicious SIP packets, resulting in a temporary denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-0316?
CVE-2018-0316 is a high-severity denial of service vulnerability in Cisco IP Phone 6800, 7800, and 8800 Series unknown, published on 7 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the Session Initiation Protocol (SIP) call-handling functionality of Cisco IP Phone 6800, 7800, and 8800 Series Phones with Multiplatform Firmware could allow an unauthenticated, remote attacker to cause an affected phone to reload unexpectedly, resulting in a temporary denial of service (DoS) condition. The vulnerability exists because the firmware of an affected phone incorrectly handles errors that could occur when an incoming phone call is not answered. An attacker could exploit this vulnerability by sending a set of maliciously crafted SIP packets to an affected phone. A successful exploit could allow the attacker to cause the affected phone to reload unexpectedly, resulting in a temporary DoS condition. This vulnerability affects Cisco IP Phone 6800, 7800, and 8800 Series Phones with Multiplatform Firmware if they are running a Multiplatform Firmware release prior to Release 11.1(2). Cisco Bug IDs: CSCvi24718.
Which versions are affected by CVE-2018-0316?
It affects 1 product.
Products include Cisco Ip Phone Firmware.
How do I fix CVE-2018-0316?
No fix has been published for CVE-2018-0316 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2018-0316 being exploited?
There is no known exploitation of CVE-2018-0316 in the wild and no public exploit code.
Other vulnerabilities in Cisco IP Phone 6800, 7800, and 8800 Series unknown
Sources
Also known as GHSA-2x7m-prqf-x77x.