CVE-2019-6605 Denial of service in BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, FPS, GTM, Link Controller, PEM, WebAccelerator)

High 7.5 Published 28 Mar 2019 Updated 4 Aug 2024

An attacker can cause a denial of service on F5 BIG-IP devices by sending a specific sequence of packets to an SSL virtual server.

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-2019-6605?

CVE-2019-6605 is a high-severity denial of service vulnerability in F5 Big-Ip Access Policy Manager, published on 28 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

On BIG-IP 11.5.1-11.5.8, 11.6.1-11.6.3, and 12.0.x, an undisclosed sequence of packets received by an SSL virtual server and processed by an associated Client SSL or Server SSL profile may cause a denial of service.

Which versions are affected by CVE-2019-6605?

It affects 13 products.

Products include F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager, F5 Big-Ip Edge Gateway and 7 more.

How do I fix CVE-2019-6605?

No fix has been published for CVE-2019-6605 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-2019-6605 being exploited?

There is no known exploitation of CVE-2019-6605 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-mvx7-r28v-2rm4.