CVE-2020-36310 Denial of service in n/a
A flaw in the Linux kernel's KVM SVM module allows a local attacker to cause an infinite loop and system hang via nested page faults.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-36310?
CVE-2020-36310 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 6 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in the Linux kernel before 5.8. arch/x86/kvm/svm/svm.c allows a set_memory_region_test infinite loop for certain nested page faults, aka CID-e72436bc3a52.
Weakness: CWE-835
Which versions are affected by CVE-2020-36310?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2020-36310?
Apply the vendor's patch.
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-2020-36310 being exploited?
There is no known exploitation of CVE-2020-36310 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2020-36310, GHSA-jhhp-vmj5-g65v, UBUNTU-CVE-2020-36310.