CVE-2023-52686 powerpc/powernv: Add a null pointer check in opal_event_init()
A missing null pointer check in the Linux kernel's PowerPC OPAL event initialization can lead to a system crash upon memory allocation failure.
- 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-2023-52686?
CVE-2023-52686 is a medium-severity vulnerability in Debian Debian Linux, published on 17 May 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:
powerpc/powernv: Add a null pointer check in opal_event_init()
kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.
Weakness: CWE-476
Which versions are affected by CVE-2023-52686?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2023-52686?
Apply the vendor's patch.
Is CVE-2023-52686 being exploited?
There is no known exploitation of CVE-2023-52686 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2023-52686, DEBIAN-CVE-2023-52686, GHSA-7g29-9wjm-w488, UBUNTU-CVE-2023-52686.