CVE-2015-4226 Denial of service in n/a
Remote attackers can cause a denial of service on Cisco 9900 phones by sending malformed RTP packets after a call is answered.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2015-4226?
CVE-2015-4226 is a high-severity denial of service vulnerability in n/a, published on 30 Jun 2015. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The packet-storing feature on Cisco 9900 phones with firmware 9.3(2) does not properly support the RTP protocol, which allows remote attackers to cause a denial of service (device hang) by sending malformed RTP packets after a call is answered, aka Bug ID CSCur39976.
Weakness: CWE-399
Which versions are affected by CVE-2015-4226?
It affects 1 product.
Products include Cisco Unified Ip Phones 9900 Series Firmware.
How do I fix CVE-2015-4226?
No fix has been published for CVE-2015-4226 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-2015-4226 being exploited?
There is no known exploitation of CVE-2015-4226 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-29v6-j9p2-6qxc.