GSD-2021-1000553 tipc: skb_linearize the head skb when reassembling msgs
A memory corruption vulnerability in the Linux kernel TIPC module allows remote attackers to cause denial of service or potentially execute code.
- 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-2021-1000553?
GSD-2021-1000553 is a memory corruption vulnerability in Kernel, published on 4 Jun 2021. An attacker can exploit it over the internet without logging in, 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 v5.12.9 by commit ace300eecbccaa698e2b472843c74a5f33f7dce8, it was introduced in version v4.3 by commit 45c8b7b175ceb2d542e0fe15247377bf3bce29ec. For more details please see the references link.
Which versions are affected by GSD-2021-1000553?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000553?
No fix has been published for GSD-2021-1000553 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-2021-1000553 being exploited?
There is no known exploitation of GSD-2021-1000553 in the wild and no public exploit code.