GSD-2021-1002094 net: mscc: ocelot: avoid overflowing the PTP timestamp FIFO
An attacker can cause a denial of service by overflowing the PTP timestamp FIFO in the Ocelot network driver.
- 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-2021-1002094?
GSD-2021-1002094 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
net: mscc: ocelot: avoid overflowing the PTP timestamp FIFO
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 v5.14.14 by commit 3b4241817601a2f59beea471baa51763d7262232, it was introduced in version v5.4 by commit 4e3b0468e6d7f3c38ce52320803769b49ba87930. For more details please see the references link.
Which versions are affected by GSD-2021-1002094?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002094?
No fix has been published for GSD-2021-1002094 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-2021-1002094 being exploited?
There is no known exploitation of GSD-2021-1002094 in the wild and no public exploit code.