CVE-2009-3726 Null dereference in n/a
A remote NFS server can cause a Linux kernel panic via a NULL pointer dereference in the NFSv4 client when handling incorrect file attributes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2009-3726?
CVE-2009-3726 is a high-severity vulnerability in Linux kernel, published on 9 Nov 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The nfs4_proc_lock function in fs/nfs/nfs4proc.c in the NFSv4 client in the Linux kernel before 2.6.31-rc4 allows remote NFS servers to cause a denial of service (NULL pointer dereference and panic) by sending a certain response containing incorrect file attributes, which trigger attempted use of an open file that lacks NFSv4 state.
Weakness: CWE-399
Which versions are affected by CVE-2009-3726?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2009-3726?
Upgrade to a fixed version.
Is CVE-2009-3726 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-3726 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Linux kernel
Sources
Also known as GHSA-76cp-8jf4-8pv2.