GSD-2022-1008177 net: tun: Fix memory leaks of napi_get_frags
A memory leak in the Linux kernel TUN driver allows local attackers to cause denial of service by exhausting system memory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1008177?
GSD-2022-1008177 is a memory corruption 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 memory leaks of napi_get_frags
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 v5.4.225 by commit a4f73f6adc53fd7a3f9771cbc89a03ef39b0b755, it was introduced in version v4.15 by commit 90e33d45940793def6f773b2d528e9f3c84ffdc7. For more details please see the references link.
Which versions are affected by GSD-2022-1008177?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008177?
No fix has been published for GSD-2022-1008177 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-2022-1008177 being exploited?
There is no known exploitation of GSD-2022-1008177 in the wild and no public exploit code.