GSD-2022-1002431 mxser: fix xmit_buf leak in activate when LSR == 0xff
A memory leak in the mxser serial driver can lead to resource exhaustion and denial of service for local attackers.
- 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-2022-1002431?
GSD-2022-1002431 is a memory corruption vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
mxser: fix xmit_buf leak in activate when LSR == 0xff
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 v4.14.276 by commit 125b7c929fc9b1e5eaa344bceb6367dfa6fd3f9d, it was introduced in version v2.6.33 by commit 6769140d304731f0a3b177470a2adb4bacd9036b. For more details please see the references link.
Which versions are affected by GSD-2022-1002431?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002431?
No fix has been published for GSD-2022-1002431 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-2022-1002431 being exploited?
There is no known exploitation of GSD-2022-1002431 in the wild and no public exploit code.