CVE-2024-27015 netfilter: flowtable: incorrect pppoe tuple
Incorrect PPPoE tuple handling in Linux kernel netfilter flowtable causes packet mismatch, forcing traffic to the slower classical forwarding path.
- 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-2024-27015?
CVE-2024-27015 is a medium-severity vulnerability in Fedoraproject Fedora, published on 1 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: flowtable: incorrect pppoe tuple
pppoe traffic reaching ingress path does not match the flowtable entry because the pppoe header is expected to be at the network header offset. This bug causes a mismatch in the flow table lookup, so pppoe packets enter the classical forwarding path.
Which versions are affected by CVE-2024-27015?
It affects 2 products.
Products include Fedoraproject Fedora, Linux kernel.
How do I fix CVE-2024-27015?
Apply the vendor's patch.
Is CVE-2024-27015 being exploited?
There is no known exploitation of CVE-2024-27015 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as AZL-42237, BELL-CVE-2024-27015, DEBIAN-CVE-2024-27015, GHSA-q3m3-7f4j-8pp7, UBUNTU-CVE-2024-27015.