CVE-2020-5936 Denial of service in BIG-IP LTM
Attackers can cause resource exhaustion and denial of service in BIG-IP LTM when SSL client authentication is enabled.
- 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-2020-5936?
CVE-2020-5936 is a high-severity denial of service vulnerability in F5 Big-Ip Local Traffic Manager, published on 29 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
On BIG-IP LTM 15.1.0-15.1.0.5, 14.1.0-14.1.2.7, 13.1.0-13.1.3.4, and 12.1.0-12.1.5.1, the Traffic Management Microkernel (TMM) process may consume excessive resources when processing SSL traffic and client authentication are enabled on the client SSL profile.
Weakness: CWE-400
Which versions are affected by CVE-2020-5936?
It affects 1 product.
Products include F5 Big-Ip Local Traffic Manager.
How do I fix CVE-2020-5936?
No fix has been published for CVE-2020-5936 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-2020-5936 being exploited?
There is no known exploitation of CVE-2020-5936 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Ip Local Traffic Manager
Sources
Also known as GHSA-ch68-7rvg-72gm.