GSD-2021-1001419 nfs: fix acl memory leak of posix_acl_create()
A memory leak in the Linux Kernel NFS ACL handling allows attackers to cause a denial of service by exhausting system memory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1001419?
GSD-2021-1001419 is a memory corruption vulnerability in Kernel, published on 3 Aug 2021. An attacker can exploit it over the internet without logging in, 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 v4.14.240 by commit 8a2b308a54c5ec224fedc753617f99b29ffcd883, it was introduced in version v3.14 by commit 013cdf1088d7235da9477a2375654921d9b9ba9f. For more details please see the references link.
Which versions are affected by GSD-2021-1001419?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001419?
No fix has been published for GSD-2021-1001419 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-2021-1001419 being exploited?
There is no known exploitation of GSD-2021-1001419 in the wild and no public exploit code.