CVE-2017-5416 Null dereference in Firefox
A premature release of a networking event listener causes a null dereference, potentially leading to a denial of service in Firefox and Thunderbird.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-5416?
CVE-2017-5416 is a high-severity vulnerability in Mozilla Firefox, published on 11 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In certain circumstances a networking event listener can be prematurely released. This appears to result in a null dereference in practice. This vulnerability affects Firefox < 52 and Thunderbird < 52.
Weakness: CWE-476
Which versions are affected by CVE-2017-5416?
It affects 2 products.
Products include Mozilla Firefox, Mozilla Thunderbird.
How do I fix CVE-2017-5416?
Upgrade to a fixed version.
Is CVE-2017-5416 being exploited?
There is no known exploitation of CVE-2017-5416 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-mj77-9wj4-9qvh, UBUNTU-CVE-2017-5416.