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CVE-2010-0623

4.9 · MEDIUM

The futex_lock_pi function in kernel/futex.c in the Linux kernel before 2.6.33-rc7 does not properly manage a certain reference count, which allows local users to cause a denial of service (OOPS) v…

Published Feb 15, 2010linuxEPSS 0.40%

Overview

CVE-2010-0623 is a medium-severity vulnerability affecting linux linux_kernel. It was published on February 15, 2010 and has a CVSS 2.0 base score of 4.9 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The futex_lock_pi function in kernel/futex.c in the Linux kernel before 2.6.33-rc7 does not properly manage a certain reference count, which allows local users to cause a denial of service (OOPS) via vectors involving an unmount of an ext3 filesystem.

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_kernel>= 0, < 2.6.33Affected

References

Refbugzilla.kernel.org/show_bug.cgi?id=14256Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5ecb01cfdf96c5f465192bdb2a4fd4a61a24c6ccReflists.opensuse.org/opensuse-security-announce/2010-03/msg00006.htmlRefsecunia.com/advisories/38922Refwww.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.33-rc7Refwww.mandriva.com/security/advisories?name=MDVSA-2010:088Refwww.openwall.com/lists/oss-security/2010/02/11/2Refwww.ubuntu.com/usn/USN-914-1Refwww.vupen.com/english/advisories/2010/0638Refbugzilla.kernel.org/show_bug.cgi?id=14256

How CyberStrike helps

Frequently asked questions

What is CVE-2010-0623?

CVE-2010-0623 is a medium-severity vulnerability affecting linux linux_kernel. It was published on February 15, 2010 and has a CVSS 2.0 base score of 4.9 (MEDIUM).

How severe is CVE-2010-0623?

This vulnerability has a CVSS 2.0 base score of 4.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2010-0623?

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-2010-0623?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2010-0623 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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