GSD-2021-1001955 NFC: digital: fix possible memory leak in digital_in_send_sdd_req()
A memory leak in the Linux Kernel NFC digital subsystem could allow 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-2021-1001955?
GSD-2021-1001955 is a memory corruption vulnerability in Kernel, published on 14 Nov 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_in_send_sdd_req()
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 v4.14.252 by commit fcce6e5255474ca33c27dda0cdf9bf5087278873, it was introduced in version v3.13 by commit 2c66daecc4092e6049673c281b2e6f0d5e59a94c. For more details please see the references link.
Which versions are affected by GSD-2021-1001955?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001955?
No fix has been published for GSD-2021-1001955 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-2021-1001955 being exploited?
There is no known exploitation of GSD-2021-1001955 in the wild and no public exploit code.