CVE-2024-26928 smb: client: fix potential UAF in cifs_debug_files_proc_show()
A use-after-free vulnerability in the Linux kernel SMB client allows attackers to potentially execute code or cause a 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-2024-26928?
CVE-2024-26928 is a high-severity use after free vulnerability in Debian Debian Linux, published on 28 Apr 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:
smb: client: fix potential UAF in cifs_debug_files_proc_show()
Skip sessions that are being teared down (status == SES_EXITING) to avoid UAF.
Weakness: CWE-416
Which versions are affected by CVE-2024-26928?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2024-26928?
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-2024-26928 being exploited?
There is no known exploitation of CVE-2024-26928 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-54981, BELL-CVE-2024-26928, DEBIAN-CVE-2024-26928, GHSA-rh2w-xmhj-38cv, UBUNTU-CVE-2024-26928.