CVE-2021-47210 usb: typec: tipd: Remove WARN_ON in tps6598x_block_read
A local attacker can trigger a kernel panic in the Linux kernel's USB Type-C driver by causing a block read with an invalid length, leading to denial of service.
- 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-2021-47210?
CVE-2021-47210 is a medium-severity denial of service vulnerability in Linux kernel, published on 10 Apr 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:
usb: typec: tipd: Remove WARN_ON in tps6598x_block_read
Calling tps6598x_block_read with a higher than allowed len can be handled by just returning an error. There's no need to crash systems with panic-on-warn enabled.
Weakness: CWE-125
Which versions are affected by CVE-2021-47210?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2021-47210?
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-2021-47210 being exploited?
There is no known exploitation of CVE-2021-47210 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2021-47210, GHSA-8c7c-3pvq-q9v3, UBUNTU-CVE-2021-47210.