GSD-2021-1000667 NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()
A NULL pointer dereference in the Linux Kernel NFSv4 subsystem allows remote attackers to cause a denial of service.
- 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-2021-1000667?
GSD-2021-1000667 is a vulnerability in Kernel, published on 4 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()
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 v4.19.193 by commit 39785761feadf261bc5101372b0b0bbaf6a94494, it was introduced in version v4.19.191 by commit 9ffa7967f9379a0a1b924e9ffeda709d72237da7. For more details please see the references link.
Which versions are affected by GSD-2021-1000667?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000667?
No fix has been published for GSD-2021-1000667 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000667 being exploited?
There is no known exploitation of GSD-2021-1000667 in the wild and no public exploit code.