GSD-2021-1002504 can: pch_can: pch_can_rx_normal: fix use after free
A use-after-free vulnerability in the Linux Kernel PCH CAN driver allows local attackers to potentially execute code or cause a system crash.
- 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-2021-1002504?
GSD-2021-1002504 is an use after free vulnerability in Kernel, published on 19 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
can: pch_can: pch_can_rx_normal: fix use after free
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 v5.10.85 by commit 703dde112021c93d6e89443c070e7dbd4dea612e, it was introduced in version v2.6.37 by commit b21d18b51b31a24d17f883b678432fbdee3d5675. For more details please see the references link.
Which versions are affected by GSD-2021-1002504?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002504?
No fix has been published for GSD-2021-1002504 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2021-1002504 being exploited?
There is no known exploitation of GSD-2021-1002504 in the wild and no public exploit code.