GSD-2022-1005932 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-2022-1005932?
GSD-2022-1005932 is a denial of service vulnerability in Kernel, published on 17 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 v5.4.212 by commit 25a80e728412739bf39f02d834c7688a1c1abe07, it was introduced in version v5.4.212 by commit 8b68e53d56697a59b5c53893b53f508bbdf272a0. For more details please see the references link.
Which versions are affected by GSD-2022-1005932?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1005932?
No fix has been published for GSD-2022-1005932 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-2022-1005932 being exploited?
There is no known exploitation of GSD-2022-1005932 in the wild and no public exploit code.