GSD-2021-1001762 nexthop: Fix division by zero while replacing a resilient group
A division by zero error in the Linux kernel nexthop subsystem can cause a system crash when replacing a resilient group.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1001762?
GSD-2021-1001762 is a denial of service vulnerability in Kernel, published on 19 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
nexthop: Fix division by zero while replacing a resilient group
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 e9d32ec26e7f01d1af13bdc687f586362546aa25, it was introduced in version v5.13 by commit 283a72a5599e80750699d2021830a294ed9ab3f3. For more details please see the references link.
Which versions are affected by GSD-2021-1001762?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001762?
No fix has been published for GSD-2021-1001762 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2021-1001762 being exploited?
There is no known exploitation of GSD-2021-1001762 in the wild and no public exploit code.