GSD-2021-1000657 tipc: skb_linearize the head skb when reassembling msgs
A memory corruption vulnerability in the Linux kernel TIPC module allows attackers to cause denial of service or potentially execute code.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000657?
GSD-2021-1000657 is a memory corruption vulnerability in Kernel, published on 4 Jun 2021. It can be exploited over the network, with no action from the victim.
Official description
tipc: skb_linearize the head skb when reassembling msgs
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 v4.19.193 by commit 4b1761898861117c97066aea6c58f68a7787f0bf, it was introduced in version v4.3 by commit 45c8b7b175ceb2d542e0fe15247377bf3bce29ec. For more details please see the references link.
Which versions are affected by GSD-2021-1000657?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000657?
No fix has been published for GSD-2021-1000657 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2021-1000657 being exploited?
There is no known exploitation of GSD-2021-1000657 in the wild and no public exploit code.