GSD-2023-1000246 net: hsr: Fix potential use-after-free
A use-after-free vulnerability in the Linux kernel's HSR protocol 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-2023-1000246?
GSD-2023-1000246 is an use after free vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net: hsr: Fix potential 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 v5.10.158 by commit 7ca81a161e406834a1fdc405fc83a572bd14b8d9, it was introduced in version v3.13 by commit f421436a591d34fa5279b54a96ac07d70250cc8d. For more details please see the references link.
Which versions are affected by GSD-2023-1000246?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000246?
No fix has been published for GSD-2023-1000246 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-2023-1000246 being exploited?
There is no known exploitation of GSD-2023-1000246 in the wild and no public exploit code.