GSD-2021-1001856 NFC: digital: fix possible memory leak in digital_tg_listen_mdaa()
A memory leak in the Linux Kernel NFC digital subsystem allows attackers to cause a denial of service via resource exhaustion.
- 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-2021-1001856?
GSD-2021-1001856 is a memory corruption vulnerability in Kernel, published on 28 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
NFC: digital: fix possible memory leak in digital_tg_listen_mdaa()
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 v5.10.75 by commit 3f2960b39f22e26cf8addae93c3f5884d1c183c9, it was introduced in version v3.13 by commit 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8. For more details please see the references link.
Which versions are affected by GSD-2021-1001856?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001856?
No fix has been published for GSD-2021-1001856 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-2021-1001856 being exploited?
There is no known exploitation of GSD-2021-1001856 in the wild and no public exploit code.