GSD-2022-1002865 bpf: Fix combination of jit blinding and pointers to bpf subprogs.
A flaw in the Linux Kernel BPF JIT blinding mechanism involving subprogram pointers could allow local attackers to achieve code execution or privilege escalation.
- 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-2022-1002865?
GSD-2022-1002865 is a memory corruption vulnerability in Kernel, published on 28 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpf: Fix combination of jit blinding and pointers to bpf subprogs.
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 v5.18.2 by commit d106a3e96fca30e44081eae9c27aab28fc132a46, it was introduced in version v5.13 by commit 69c087ba6225b574afb6e505b72cb75242a3d844. For more details please see the references link.
Which versions are affected by GSD-2022-1002865?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002865?
No fix has been published for GSD-2022-1002865 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-2022-1002865 being exploited?
There is no known exploitation of GSD-2022-1002865 in the wild and no public exploit code.