CVE-2019-11937 Denial of service in Mcrouter
An attacker can cause a denial of service in Mcrouter by sending a large struct input to the Carbon protocol reader, leading to stack exhaustion.
- 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-2019-11937?
CVE-2019-11937 is a high-severity denial of service vulnerability in Facebook Mcrouter, published on 4 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Mcrouter prior to v0.41.0, a large struct input provided to the Carbon protocol reader could result in stack exhaustion and denial of service.
Weakness: CWE-674
Which versions are affected by CVE-2019-11937?
It affects 1 product.
Products include Facebook Mcrouter.
How do I fix CVE-2019-11937?
No fix has been published for CVE-2019-11937 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-2019-11937 being exploited?
There is no known exploitation of CVE-2019-11937 in the wild and no public exploit code.
Other vulnerabilities in Facebook Mcrouter
Sources
Also known as GHSA-44c7-rp6q-gcrh.