GSD-2023-1002045 bpf, sockmap: Check for any of tcp_bpf_prots when cloning a listener
A flaw in the Linux kernel's sockmap implementation allows local attackers to cause a denial of service by cloning a listener with specific BPF protocols.
- 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-2023-1002045?
GSD-2023-1002045 is a 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, sockmap: Check for any of tcp_bpf_prots when cloning a listener
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 v5.15.93 by commit c681d7a4ed3d360de0574f4d6b7305a8de8dc54f, it was introduced in version v5.7 by commit e80251555f0befd1271e74b080bccf0ff0348bfc. For more details please see the references link.
Which versions are affected by GSD-2023-1002045?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1002045?
No fix has been published for GSD-2023-1002045 yet. Limit exposure of the affected software until one is available.
Is GSD-2023-1002045 being exploited?
There is no known exploitation of GSD-2023-1002045 in the wild and no public exploit code.