GSD-2021-1000850 net/nfc/rawsock.c: fix a permission check bug
A permission check bug in the Linux Kernel NFC raw socket implementation allows local attackers to bypass authorization controls.
- 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-2021-1000850?
GSD-2021-1000850 is a missing authorization vulnerability in Kernel, published on 30 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net/nfc/rawsock.c: fix a permission check bug
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 v4.14.237 by commit 38cb2e23188af29c43966acee9dbb18b62e26cfe. For more details please see the references link.
Which versions are affected by GSD-2021-1000850?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000850?
No fix has been published for GSD-2021-1000850 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is GSD-2021-1000850 being exploited?
There is no known exploitation of GSD-2021-1000850 in the wild and no public exploit code.