GSD-2021-1000668 NFC: nci: fix memory leak in nci_allocate_device
A memory leak in the Linux Kernel NFC subsystem allows local attackers to cause a denial of service by exhausting system memory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000668?
GSD-2021-1000668 is a memory corruption vulnerability in Kernel, published on 4 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
NFC: nci: fix memory leak in nci_allocate_device
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 v4.19.193 by commit 0365701bc44e078682ee1224866a71897495c7ef, it was introduced in version v4.0 by commit 11f54f228643d0248ec00ce8c9fb8d872f87e7b8. For more details please see the references link.
Which versions are affected by GSD-2021-1000668?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000668?
No fix has been published for GSD-2021-1000668 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-2021-1000668 being exploited?
There is no known exploitation of GSD-2021-1000668 in the wild and no public exploit code.