GSD-2023-1002203 ipv4: prevent potential spectre v1 gadget in fib_metrics_match()
A Spectre v1 gadget in the Linux kernel IPv4 routing code could allow attackers to read sensitive memory via speculative execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2023-1002203?
GSD-2023-1002203 is a vulnerability in Kernel, published on 13 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ipv4: prevent potential spectre v1 gadget in fib_metrics_match()
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 v5.4.231 by commit 8f0eb24f1a7a60ce635f0d757a46f1a37a4d467d, it was introduced in version v4.14 by commit 5f9ae3d9e7e4ad6db0491abc7c4ae5452dbeadd8. For more details please see the references link.
Which versions are affected by GSD-2023-1002203?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1002203?
No fix has been published for GSD-2023-1002203 yet. Limit exposure of the affected software until one is available.
Is GSD-2023-1002203 being exploited?
There is no known exploitation of GSD-2023-1002203 in the wild and no public exploit code.