CVE-2019-18601 Denial of service in n/a

High 7.5 Published Updated

Remote attackers can crash the OpenAFS database server by sending specific RPC calls, causing a denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2019-18601?

CVE-2019-18601 is a high-severity denial of service vulnerability in n/a, published on 29 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

OpenAFS before 1.6.24 and 1.8.x before 1.8.5 is prone to denial of service from unserialized data access because remote attackers can make a series of VOTE_Debug RPC calls to crash a database server within the SVOTE_Debug RPC handler.

Weakness: CWE-502

Which versions are affected by CVE-2019-18601?

It affects 1 product.

Products include Openafs Openafs.

How do I fix CVE-2019-18601?

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-2019-18601 being exploited?

There is no known exploitation of CVE-2019-18601 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2019-18601, GHSA-m28x-w8m6-pc3f, UBUNTU-CVE-2019-18601.

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