CVE-2019-18936 Denial of service in n/a
Attackers can cause a denial of service in applications using the UniValue library by sending input that triggers an internal state inconsistency.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-18936?
CVE-2019-18936 is a high-severity denial of service vulnerability in n/a, published on 21 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
UniValue::read() in UniValue before 1.0.5 allow attackers to cause a denial of service (the class internal data reaches an inconsistent state) via input data that triggers an error.
Weakness: CWE-674
Which versions are affected by CVE-2019-18936?
It affects 1 product.
Products include Bloq Univalue.
How do I fix CVE-2019-18936?
Upgrade to a fixed version.
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-2019-18936 being exploited?
There is no known exploitation of CVE-2019-18936 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2019-18936, GHSA-wx4x-g99q-9526, UBUNTU-CVE-2019-18936.