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CVE-2009-0935

5.5 · MEDIUM

The inotify_read function in the Linux kernel 2.6.27 to 2.6.27.13, 2.6.28 to 2.6.28.2, and 2.6.29-rc3 allows local users to cause a denial of service (OOPS) via a read with an invalid address to an…

Published Mar 18, 2009linuxCWE-667EPSS 0.27%

Overview

CVE-2009-0935 is a medium-severity vulnerability affecting linux linux_kernel. It was published on March 18, 2009 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

The inotify_read function in the Linux kernel 2.6.27 to 2.6.27.13, 2.6.28 to 2.6.28.2, and 2.6.29-rc3 allows local users to cause a denial of service (OOPS) via a read with an invalid address to an inotify instance, which causes the device's event list mutex to be unlocked twice and prevents proper synchronization of a data structure for the inotify instance.

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_kernel2.6.27Affected

References

Refmarc.info/?l=linux-kernel&m=123337123501681&w=2Refwww.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.3Refwww.openwall.com/lists/oss-security/2009/03/06/2Refwww.openwall.com/lists/oss-security/2009/03/18/5Refwww.openwall.com/lists/oss-security/2009/03/19/2Refwww.securityfocus.com/bid/33624Refbugzilla.redhat.com/show_bug.cgi?id=488935Refexchange.xforce.ibmcloud.com/vulnerabilities/49331Refmarc.info/?l=linux-kernel&m=123337123501681&w=2Refwww.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.3

How CyberStrike helps

Frequently asked questions

What is CVE-2009-0935?

CVE-2009-0935 is a medium-severity vulnerability affecting linux linux_kernel. It was published on March 18, 2009 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2009-0935?

This vulnerability has a CVSS 3.1 base score of 5.5, 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-2009-0935?

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-2009-0935?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-0935 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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