GSD-2021-1002437 net: nexthop: fix null pointer dereference when IPv6 is not enabled
A null pointer dereference in the Linux kernel network stack can cause a denial of service when IPv6 is disabled.
- 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-2021-1002437?
GSD-2021-1002437 is a vulnerability in Kernel, published on 19 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net: nexthop: fix null pointer dereference when IPv6 is not enabled
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 v5.4.163 by commit 7b6f44856da5ba0b1aa61403eb9fddd272156503, it was introduced in version v5.3 by commit 53010f991a9f5e4ed2db705ddde6ff32709192a2. For more details please see the references link.
Which versions are affected by GSD-2021-1002437?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002437?
No fix has been published for GSD-2021-1002437 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1002437 being exploited?
There is no known exploitation of GSD-2021-1002437 in the wild and no public exploit code.