GSD-2023-1002051 bpf: Skip task with pid=1 in send_signal_common()
A flaw in the Linux kernel BPF subsystem allows privileged attackers to cause a denial of service by sending signals to the init process.
- 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-2023-1002051?
GSD-2023-1002051 is a denial of service vulnerability in Kernel, published on 13 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpf: Skip task with pid=1 in send_signal_common()
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 v5.15.92 by commit 0dfef503133565fa0bcf3268d8eeb5b181191a65. For more details please see the references link.
Which versions are affected by GSD-2023-1002051?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1002051?
No fix has been published for GSD-2023-1002051 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-2023-1002051 being exploited?
There is no known exploitation of GSD-2023-1002051 in the wild and no public exploit code.