GSD-2021-1001754 mptcp: ensure tx skbs always have the MPTCP ext
A missing extension in MPTCP transmit skbs can cause a null pointer dereference, leading to a kernel crash and 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-2021-1001754?
GSD-2021-1001754 is a vulnerability in Kernel, published on 19 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
mptcp: ensure tx skbs always have the MPTCP ext
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 v5.14.9 by commit f8ff625a8082db8c2b58dcb5229b27928943b94b, it was introduced in version v5.14.7 by commit e35820fb56415be6924bf552ec223ed5f347b4be. For more details please see the references link.
Which versions are affected by GSD-2021-1001754?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001754?
No fix has been published for GSD-2021-1001754 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1001754 being exploited?
There is no known exploitation of GSD-2021-1001754 in the wild and no public exploit code.