CVE-2024-36967 KEYS: trusted: Fix memory leak in tpm2_key_encode()
A memory leak in the Linux kernel's trusted keys subsystem allows attackers to exhaust system memory, potentially causing a denial of service.
- 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-2024-36967?
CVE-2024-36967 is a medium-severity denial of service vulnerability in Linux kernel, published on 8 Jun 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
KEYS: trusted: Fix memory leak in tpm2_key_encode()
'scratch' is never freed. Fix this by calling kfree() in the success, and in the error case.
Weakness: CWE-401
Which versions are affected by CVE-2024-36967?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-36967?
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-2024-36967 being exploited?
There is no known exploitation of CVE-2024-36967 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-36967, DEBIAN-CVE-2024-36967, GHSA-rvq4-9f28-mrwc, UBUNTU-CVE-2024-36967.