CVE-2019-3560 Denial of service in fizz
An attacker can cause a denial of service via an infinite loop in the Fizz TLS library due to improper buffer length calculation.
- 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-2019-3560?
CVE-2019-3560 is a high-severity denial of service vulnerability in Facebook fizz, published on 29 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An improperly performed length calculation on a buffer in PlaintextRecordLayer could lead to an infinite loop and denial-of-service based on user input. This issue affected versions of fizz prior to v2019.03.04.00.
Which versions are affected by CVE-2019-3560?
It affects 1 product.
Products include Facebook Fizz.
How do I fix CVE-2019-3560?
No fix has been published for CVE-2019-3560 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-2019-3560 being exploited?
There is no known exploitation of CVE-2019-3560 in the wild and no public exploit code.
Other vulnerabilities in Facebook fizz
Sources
Also known as GHSA-q2rp-27fw-94mp.