GSD-2022-1005422 net/af_packet: check len when min_header_len equals to 0
A missing length check in the Linux kernel's af_packet module can lead to a denial of service when min_header_len is zero.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1005422?
GSD-2022-1005422 is a denial of service vulnerability in Kernel, published on 16 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net/af_packet: check len when min_header_len equals to 0
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.65 by commit facf99bc3a951ab7adddfc7a88b1411d01342d82, it was introduced in version v5.15.65 by commit a75987714bd2d8e59840667a28e15c1fa5c47554. For more details please see the references link.
Which versions are affected by GSD-2022-1005422?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1005422?
No fix has been published for GSD-2022-1005422 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2022-1005422 being exploited?
There is no known exploitation of GSD-2022-1005422 in the wild and no public exploit code.