GSD-2023-1001480 bpf: Fix slot type check in check_stack_write_var_off
A flaw in the Linux kernel BPF verifier allows local attackers to potentially escalate privileges or execute code via improper stack slot type checks.
- 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-2023-1001480?
GSD-2023-1001480 is a memory corruption vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpf: Fix slot type check in check_stack_write_var_off
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 v5.10.163 by commit 72e8d9c731a78a30d7347fa8104ca0547a295e09, it was introduced in version v5.10.33 by commit f3c4b01689d392373301e6e60d1b02c5b4020afc. For more details please see the references link.
Which versions are affected by GSD-2023-1001480?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1001480?
No fix has been published for GSD-2023-1001480 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-2023-1001480 being exploited?
There is no known exploitation of GSD-2023-1001480 in the wild and no public exploit code.