GSD-2022-1006706 efi: ssdt: Don't free memory if ACPI table was loaded successfully
A use-after-free vulnerability in the Linux kernel EFI SSDT handling allows local attackers to cause a denial of service or potentially execute code.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1006706?
GSD-2022-1006706 is an use after free vulnerability in Kernel, published on 14 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
efi: ssdt: Don't free memory if ACPI table was loaded successfully
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 v6.0.4 by commit 11497fd69cd2282538ec6eb4cda1d16fc061233d, it was introduced in version v6.0 by commit 3881ee0b1edce0ece72d24b7c74f46b73bd6dcba. For more details please see the references link.
Which versions are affected by GSD-2022-1006706?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1006706?
No fix has been published for GSD-2022-1006706 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-2022-1006706 being exploited?
There is no known exploitation of GSD-2022-1006706 in the wild and no public exploit code.