GSD-2021-1001027 tracing: Correct the length check which causes memory corruption
A length check error in the Linux kernel tracing subsystem allows local attackers to cause memory corruption, potentially leading to code execution or privilege escalation.
- 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-2021-1001027?
GSD-2021-1001027 is a memory corruption vulnerability in Kernel, published on 30 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
tracing: Correct the length check which causes memory corruption
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 v5.12.11 by commit b16a249eca2230c2cd66fa1d4b94743bd9b6ef92, it was introduced in version v5.11 by commit b220c049d5196dd94d992dd2dc8cba1a5e6123bf. For more details please see the references link.
Which versions are affected by GSD-2021-1001027?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001027?
No fix has been published for GSD-2021-1001027 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-2021-1001027 being exploited?
There is no known exploitation of GSD-2021-1001027 in the wild and no public exploit code.