GSD-2023-1000247 tipc: re-fetch skb cb after tipc_msg_validate
A use-after-free vulnerability in the Linux kernel TIPC module allows attackers to potentially execute code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2023-1000247?
GSD-2023-1000247 is an use after free vulnerability in Kernel, published on 17 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
tipc: re-fetch skb cb after tipc_msg_validate
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 a1ba595e35aa3afbe417ff0af353afb9f65559c0, it was introduced in version v5.5 by commit fc1b6d6de2208774efd2a20bf0daddb02d18b1e0. For more details please see the references link.
Which versions are affected by GSD-2023-1000247?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000247?
No fix has been published for GSD-2023-1000247 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-2023-1000247 being exploited?
There is no known exploitation of GSD-2023-1000247 in the wild and no public exploit code.