CVE-2023-26544 Use after free in n/a
A use-after-free in the Linux kernel NTFS3 driver allows attackers to execute arbitrary code or escalate privileges via crafted filesystem images.
- 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-2023-26544?
CVE-2023-26544 is a high-severity use after free vulnerability in Linux kernel, published on 25 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel 6.0.8, there is a use-after-free in run_unpack in fs/ntfs3/run.c, related to a difference between NTFS sector size and media sector size.
Weakness: CWE-416
Which versions are affected by CVE-2023-26544?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-26544?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2023-26544 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-26544 exists.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2023-26544, GHSA-hh6r-xc8x-f53f, UBUNTU-CVE-2023-26544.