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CVE-2009-1961

4.7 · MEDIUM

The inode double locking code in fs/ocfs2/file.c in the Linux kernel 2.6.30 before 2.6.30-rc3, 2.6.27 before 2.6.27.24, 2.6.29 before 2.6.29.4, and possibly other versions down to 2.6.19 allows loc…

Published Jun 8, 2009linuxCWE-667EPSS 0.59%

Overview

CVE-2009-1961 is a medium-severity vulnerability affecting linux linux_kernel. It was published on June 8, 2009 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

The inode double locking code in fs/ocfs2/file.c in the Linux kernel 2.6.30 before 2.6.30-rc3, 2.6.27 before 2.6.27.24, 2.6.29 before 2.6.29.4, and possibly other versions down to 2.6.19 allows local users to cause a denial of service (prevention of file creation and removal) via a series of splice system calls that trigger a deadlock between the generic_file_splice_write, splice_from_pipe, and ocfs2_file_splice_write functions.

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=commitdiff%3Bh=7bfac9ecf0585962fe13584f5cf526d8c8e76f17Reflists.opensuse.org/opensuse-security-announce/2009-06/msg00000.htmlReflists.opensuse.org/opensuse-security-announce/2009-06/msg00001.htmlReflists.opensuse.org/opensuse-security-announce/2009-07/msg00004.htmlRefsecunia.com/advisories/35390Refsecunia.com/advisories/35394Refsecunia.com/advisories/35656Refsecunia.com/advisories/35847Refsecunia.com/advisories/36051Refsecuritytracker.com/id?1022307

How CyberStrike helps

Frequently asked questions

What is CVE-2009-1961?

CVE-2009-1961 is a medium-severity vulnerability affecting linux linux_kernel. It was published on June 8, 2009 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2009-1961?

This vulnerability has a CVSS 3.1 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2009-1961?

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-2009-1961?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-1961 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.

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