GSD-2022-1008265 net: tun: fix bugs for oversize packet when napi frags enabled
A bug in the Linux kernel TUN driver when NAPI fragments are enabled can cause issues with oversize packets, potentially leading to denial of service.
- 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-2022-1008265?
GSD-2022-1008265 is a denial of service vulnerability in Kernel, published on 8 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net: tun: fix bugs for oversize packet when napi frags 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 v4.19.265 by commit aa815bf32acf560dad63c3dc46bc7b98ca9a9672, it was introduced in version v4.15 by commit 90e33d45940793def6f773b2d528e9f3c84ffdc7. For more details please see the references link.
Which versions are affected by GSD-2022-1008265?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008265?
No fix has been published for GSD-2022-1008265 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-2022-1008265 being exploited?
There is no known exploitation of GSD-2022-1008265 in the wild and no public exploit code.