GSD-2021-1001467 KVM: PPC: Book3S: Fix H_RTAS rets buffer overflow
A buffer overflow in the KVM PPC Book3S H_RTAS handler allows local attackers to potentially execute code or escalate privileges.
- 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-2021-1001467?
GSD-2021-1001467 is a memory corruption vulnerability in Kernel, published on 3 Aug 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
KVM: PPC: Book3S: Fix H_RTAS rets buffer overflow
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 v4.4.277 by commit 1e90a673f6ee09c668fe01aa1b94924f972c9811, it was introduced in version v3.10 by commit 8e591cb7204739efa8e15967ea334eb367039dde. For more details please see the references link.
Which versions are affected by GSD-2021-1001467?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001467?
No fix has been published for GSD-2021-1001467 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-2021-1001467 being exploited?
There is no known exploitation of GSD-2021-1001467 in the wild and no public exploit code.