CVE-2019-3559 Denial of service in Facebook Thrift

High 7.5 Published Updated

Malicious clients can cause denial of service in Java Facebook Thrift servers by sending messages with unknown field types that take excessive time to parse.

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-2019-3559?

CVE-2019-3559 is a high-severity denial of service vulnerability in Facebook Thrift, published on 6 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Java Facebook Thrift servers would not error upon receiving messages with containers of fields of unknown type. As a result, malicious clients could send short messages which would take a long time for the server to parse, potentially leading to denial of service. This issue affects Facebook Thrift prior to v2019.02.18.00.

Weakness: CWE-755, CWE-834

Which versions are affected by CVE-2019-3559?

It affects 1 product.

Products include Facebook Thrift.

How do I fix CVE-2019-3559?

No fix has been published for CVE-2019-3559 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-2019-3559 being exploited?

There is no known exploitation of CVE-2019-3559 in the wild and no public exploit code.

Sources

Also known as GHSA-6627-jcx5-j2g8, UBUNTU-CVE-2019-3559.

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