CVE-2023-52805 jfs: fix array-index-out-of-bounds in diAlloc
A missing bounds check in the JFS filesystem allows an attacker to cause a kernel crash via an out-of-bounds array index.
- 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-2023-52805?
CVE-2023-52805 is a high-severity vulnerability in Linux kernel, published on 21 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:
jfs: fix array-index-out-of-bounds in diAlloc
Currently there is not check against the agno of the iag while allocating new inodes to avoid fragmentation problem. Added the check which is required.
Weakness: CWE-129
Which versions are affected by CVE-2023-52805?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-52805?
Apply the vendor's patch.
Is CVE-2023-52805 being exploited?
There is no known exploitation of CVE-2023-52805 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-52805, DEBIAN-CVE-2023-52805, GHSA-7wx4-4999-cgfj, UBUNTU-CVE-2023-52805.