GSD-2023-1001885 bpf, sockmap: Check for any of tcp_bpf_prots when cloning a listener
A flaw in the Linux kernel's sockmap implementation could allow a local attacker 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-2023-1001885?
GSD-2023-1001885 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 v6.1.11 by commit 12b0ec7c6953e1602957926439e5297095d7d065, it was introduced in version v5.7 by commit e80251555f0befd1271e74b080bccf0ff0348bfc. For more details please see the references link.
Which versions are affected by GSD-2023-1001885?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1001885?
No fix has been published for GSD-2023-1001885 yet. Limit exposure of the affected software until one is available.
Is GSD-2023-1001885 being exploited?
There is no known exploitation of GSD-2023-1001885 in the wild and no public exploit code.