CVE-2023-52799 jfs: fix array-index-out-of-bounds in dbFindLeaf
An out-of-bounds array access in the JFS filesystem can cause a kernel crash, requiring a patch to prevent 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-2023-52799?
CVE-2023-52799 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 dbFindLeaf
Currently while searching for dmtree_t for sufficient free blocks there is an array out of bounds while getting element in tp->dm_stree. To add the required check for out of bound we first need to determine the type of dmtree. Thus added an extra parameter to dbFindLeaf so that the type of tree can be determined and the required check can be applied.
Weakness: CWE-129
Which versions are affected by CVE-2023-52799?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-52799?
Apply the vendor's patch.
Is CVE-2023-52799 being exploited?
There is no known exploitation of CVE-2023-52799 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-52799, DEBIAN-CVE-2023-52799, GHSA-c352-9339-wrc2, UBUNTU-CVE-2023-52799.