CVE-2024-35897 netfilter: nf_tables: discard table flag update with pending basechain deletion
A race condition in Linux kernel netfilter allows deleting a basechain while its hook remains registered, potentially causing system instability or 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-2024-35897?
CVE-2024-35897 is a high-severity vulnerability in Debian Debian Linux, published on 19 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:
netfilter: nf_tables: discard table flag update with pending basechain deletion
Hook unregistration is deferred to the commit phase, same occurs with hook updates triggered by the table dormant flag. When both commands are combined, this results in deleting a basechain while leaving its hook still registered in the core.
Which versions are affected by CVE-2024-35897?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2024-35897?
Apply the vendor's patch.
Is CVE-2024-35897 being exploited?
There is no known exploitation of CVE-2024-35897 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2024-35897, DEBIAN-CVE-2024-35897, GHSA-483v-mfx2-pvhx, UBUNTU-CVE-2024-35897.