GSD-2021-1000571 can: isotp: prevent race between isotp_bind() and isotp_setsockopt()
A race condition in the Linux kernel CAN ISO-TP protocol allows local attackers to cause instability or undefined behavior.
- 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-2021-1000571?
GSD-2021-1000571 is a vulnerability in Kernel, published on 4 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
can: isotp: prevent race between isotp_bind() and isotp_setsockopt()
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 v5.12.9 by commit b190618d8337b9466d985854e417dc0e8b012e3c, it was introduced in version v5.11 by commit 921ca574cd382142add8b12d0a7117f495510de5. For more details please see the references link.
Which versions are affected by GSD-2021-1000571?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000571?
No fix has been published for GSD-2021-1000571 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000571 being exploited?
There is no known exploitation of GSD-2021-1000571 in the wild and no public exploit code.