CVE-2024-46861 usbnet: ipheth: do not stop RX on failing RX callback
A flaw in the Linux kernel ipheth driver allows remote attackers to cause a denial of service by sending malformed USB network packets that halt reception.
- 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-2024-46861?
CVE-2024-46861 is a medium-severity denial of service vulnerability in Linux kernel, published on 27 Sep 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:
usbnet: ipheth: do not stop RX on failing RX callback
RX callbacks can fail for multiple reasons:
* Payload too short * Payload formatted incorrecly (e.g. bad NCM framing) * Lack of memory
None of these should cause the driver to seize up.
Make such failures non-critical and continue processing further incoming URBs.
Which versions are affected by CVE-2024-46861?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-46861?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-46861 being exploited?
There is no known exploitation of CVE-2024-46861 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-49878, AZL-49895, BELL-CVE-2024-46861, DEBIAN-CVE-2024-46861, GHSA-mhrv-mcvx-mvx7, ROOT-OS-UBUNTU-2204-CVE-2024-46861 and 1 more.