CVE-2017-7671 Denial of service in Apache Traffic Server

High 7.5 Published Updated

A remote attacker can cause a denial of service by triggering a core dump during the TLS handshake in Apache Traffic Server.

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

What is CVE-2017-7671?

CVE-2017-7671 is a high-severity denial of service vulnerability in Apache Traffic Server, published on 27 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is a DOS attack vulnerability in Apache Traffic Server (ATS) 5.2.0 to 5.3.2, 6.0.0 to 6.2.0, and 7.0.0 with the TLS handshake. This issue can cause the server to coredump.

Weakness: CWE-20

Which versions are affected by CVE-2017-7671?

It affects 2 products.

Products include Apache Traffic Server, Debian Debian Linux.

How do I fix CVE-2017-7671?

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-2017-7671 being exploited?

There is no known exploitation of CVE-2017-7671 in the wild and no public exploit code.

All Apache Traffic Server vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-7671, GHSA-cp9g-xqrx-g4w7, UBUNTU-CVE-2017-7671.

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