CVE-2024-42156 s390/pkey: Wipe copies of clear-key structures on failure
An attacker with local access could read sensitive cryptographic keys from the kernel stack due to improper memory wiping in the s390 pkey module.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-42156?
CVE-2024-42156 is a medium-severity vulnerability in Linux kernel, published on 30 Jul 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:
s390/pkey: Wipe copies of clear-key structures on failure
Wipe all sensitive data from stack for all IOCTLs, which convert a clear-key into a protected- or secure-key.
Which versions are affected by CVE-2024-42156?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-42156?
Apply the vendor's patch.
Is CVE-2024-42156 being exploited?
There is no known exploitation of CVE-2024-42156 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-47361, AZL-47403, BELL-CVE-2024-42156, DEBIAN-CVE-2024-42156, GHSA-vqfv-6vgr-3j88, ROOT-OS-DEBIAN-11-CVE-2024-42156 and 2 more.