GSD-2021-1001986 usbnet: sanity check for maxpacket
A missing sanity check in the Linux kernel usbnet driver can lead to a denial of service when processing malformed USB packets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1001986?
GSD-2021-1001986 is a denial of service vulnerability in Kernel, published on 14 Nov 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
usbnet: sanity check for maxpacket
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 v4.19.215 by commit 002d82227c0abe29118cf80f7e2f396b22d448ed. For more details please see the references link.
Which versions are affected by GSD-2021-1001986?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001986?
No fix has been published for GSD-2021-1001986 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-2021-1001986 being exploited?
There is no known exploitation of GSD-2021-1001986 in the wild and no public exploit code.