GSD-2023-1001943 NFSD: fix use-after-free in nfsd4_ssc_setup_dul()
A use-after-free vulnerability in the Linux Kernel NFS server allows attackers to potentially execute code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2023-1001943?
GSD-2023-1001943 is an use after free vulnerability in Kernel, published on 13 Feb 2023. It can be exploited over the network, with no action from the victim.
Official description
NFSD: fix use-after-free in nfsd4_ssc_setup_dul()
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 v6.1.9 by commit 32d5eb95f8f0e362e37c393310b13b9e95404560, it was introduced in version v5.14 by commit f4e44b393389c77958f7c58bf4415032b4cda15b. For more details please see the references link.
Which versions are affected by GSD-2023-1001943?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1001943?
No fix has been published for GSD-2023-1001943 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2023-1001943 being exploited?
There is no known exploitation of GSD-2023-1001943 in the wild and no public exploit code.