CVE-2024-42155 s390/pkey: Wipe copies of protected- and secure-keys
Local attackers can read sensitive cryptographic key material from the kernel stack due to insufficient memory wiping in the s390 pkey subsystem.
- 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-2024-42155?
CVE-2024-42155 is a low-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 protected- and secure-keys
Although the clear-key of neither protected- nor secure-keys is accessible, this key material should only be visible to the calling process. So wipe all copies of protected- or secure-keys from stack, even in case of an error.
Which versions are affected by CVE-2024-42155?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-42155?
Apply the vendor's patch.
Is CVE-2024-42155 being exploited?
There is no known exploitation of CVE-2024-42155 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-47507, AZL-47586, BELL-CVE-2024-42155, DEBIAN-CVE-2024-42155, GHSA-r968-6g59-6626, ROOT-OS-UBUNTU-2204-CVE-2024-42155 and 1 more.