CVE-2018-15330 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 20 Dec 2018 Updated 16 Sep 2024

Attackers can cause a fatal error and crash the Traffic Management Microkernel by sending a gzip bomb to a virtual server configured with inflate functionality.

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-2018-15330?

CVE-2018-15330 is a high-severity denial of service vulnerability in F5 Big-Ip Access Policy Manager, published on 20 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

On BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.1, or 12.1.0-12.1.3.7, when a virtual server using the inflate functionality to process a gzip bomb as a payload, the BIG-IP system will experience a fatal error and may cause the Traffic Management Microkernel (TMM) to produce a core file.

Weakness: CWE-20

Which versions are affected by CVE-2018-15330?

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 Domain Name System and 7 more.

How do I fix CVE-2018-15330?

No fix has been published for CVE-2018-15330 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-2018-15330 being exploited?

There is no known exploitation of CVE-2018-15330 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-h5g4-9qh8-cmr3.