Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2009-3726

7.8 · HIGH

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…

Published Nov 9, 2009linuxCWE-399EPSS 12.00%

Overview

CVE-2009-3726 is a high-severity vulnerability affecting linux linux_kernel. It was published on November 9, 2009 and has a CVSS 2.0 base score of 7.8 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
linuxlinux_kernel0Affected

References

Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d953126a28f97ec965d23c69fd5795854c048f30Reflists.opensuse.org/opensuse-security-announce/2009-11/msg00007.htmlReflists.opensuse.org/opensuse-security-announce/2009-12/msg00002.htmlReflists.opensuse.org/opensuse-security-announce/2009-12/msg00005.htmlReflists.opensuse.org/opensuse-security-announce/2010-02/msg00005.htmlReflists.vmware.com/pipermail/security-announce/2010/000082.htmlRefsecunia.com/advisories/37909Refsecunia.com/advisories/38794Refsecunia.com/advisories/38834Refsecunia.com/advisories/40218

How CyberStrike helps

Frequently asked questions

What is CVE-2009-3726?

CVE-2009-3726 is a high-severity vulnerability affecting linux linux_kernel. It was published on November 9, 2009 and has a CVSS 2.0 base score of 7.8 (HIGH).

How severe is CVE-2009-3726?

This vulnerability has a CVSS 2.0 base score of 7.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-3726?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2009-3726?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-3726 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2009

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999