GSD-2022-1008253 capabilities: fix potential memleak on error path from vfs_getxattr_alloc()
A memory leak in the Linux kernel capabilities subsystem can lead to resource exhaustion and denial of service.
- 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-2022-1008253?
GSD-2022-1008253 is a memory corruption vulnerability in Kernel, published on 8 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
capabilities: fix potential memleak on error path from vfs_getxattr_alloc()
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 v4.19.265 by commit 90577bcc01c4188416a47269f8433f70502abe98, it was introduced in version v4.14 by commit 8db6c34f1dbc8e06aa016a9b829b06902c3e1340. For more details please see the references link.
Which versions are affected by GSD-2022-1008253?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008253?
No fix has been published for GSD-2022-1008253 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-2022-1008253 being exploited?
There is no known exploitation of GSD-2022-1008253 in the wild and no public exploit code.