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high7.8Public exploit code

CVE-2009-3726

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 servi…

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

Impact

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.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
through 2.6.31
Versions 2.2.27, 2.4.1, 2.4.2, 2.4.3, 2.4.4

Weakness classification

CWE-399

References