CVE-2020-5914 Denial of service in BIG-IP ASM

High 7.5 Published Updated

An undisclosed server cookie scenario in BIG-IP ASM can cause the system to restart, leading to a denial of service.

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-2020-5914?

CVE-2020-5914 is a high-severity denial of service vulnerability in F5 Big-Ip Application Security Manager, published on 26 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In BIG-IP ASM versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, undisclosed server cookie scenario may cause BD to restart under some circumstances.

Which versions are affected by CVE-2020-5914?

It affects 1 product.

Products include F5 Big-Ip Application Security Manager.

How do I fix CVE-2020-5914?

No fix has been published for CVE-2020-5914 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-2020-5914 being exploited?

There is no known exploitation of CVE-2020-5914 in the wild and no public exploit code.

All F5 Big-Ip Application Security Manager vulnerabilities

Sources

Also known as GHSA-p5hf-25jf-vgj9.

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