CVE-2014-8416 Use after free in n/a
Remote attackers can crash Asterisk PBX via crafted SIP messages when the res_pjsip_refer module is enabled, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2014-8416?
CVE-2014-8416 is a medium-severity use after free vulnerability in Digium Asterisk, published on 24 Nov 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Use-after-free vulnerability in the PJSIP channel driver in Asterisk Open Source 12.x before 12.7.1 and 13.x before 13.0.1, when using the res_pjsip_refer module, allows remote attackers to cause a denial of service (crash) via an in-dialog INVITE with Replaces message, which triggers the channel to be hung up.
Weakness: CWE-20
Which versions are affected by CVE-2014-8416?
It affects 1 product.
Products include Digium Asterisk.
How do I fix CVE-2014-8416?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2014-8416 being exploited?
There is no known exploitation of CVE-2014-8416 in the wild and no public exploit code.
Other vulnerabilities in Digium Asterisk
Sources
Also known as DEBIAN-CVE-2014-8416, GHSA-7mmh-v685-w5gw.