GSD-2021-1002818 NFSD: Fix READDIR buffer overflow
A buffer overflow in the Linux Kernel NFSD READDIR operation allows remote attackers to cause denial of service or potentially execute code.
- 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-2021-1002818?
GSD-2021-1002818 is a memory corruption vulnerability in Kernel, published on 30 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
NFSD: Fix READDIR buffer overflow
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 v5.15.12 by commit eabc0aab98e5218ceecd82069b0d6fdfff5ee885, it was introduced in version v5.13 by commit f5dcccd647da513a89f3b6ca392b0c1eb050b9fc. For more details please see the references link.
Which versions are affected by GSD-2021-1002818?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002818?
No fix has been published for GSD-2021-1002818 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-2021-1002818 being exploited?
There is no known exploitation of GSD-2021-1002818 in the wild and no public exploit code.