GSD-2021-1001450 nfs: fix acl memory leak of posix_acl_create()
A memory leak in the Linux kernel's NFS ACL handling can lead to resource exhaustion and denial of service.
- 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-2021-1001450?
GSD-2021-1001450 is a memory corruption vulnerability in Kernel, published on 3 Aug 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
nfs: fix acl memory leak of posix_acl_create()
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 v4.9.276 by commit cef9d9acb7c80ed6bace894b6334557fd493863b, it was introduced in version v3.14 by commit 013cdf1088d7235da9477a2375654921d9b9ba9f. For more details please see the references link.
Which versions are affected by GSD-2021-1001450?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001450?
No fix has been published for GSD-2021-1001450 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-2021-1001450 being exploited?
There is no known exploitation of GSD-2021-1001450 in the wild and no public exploit code.