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CVE-2011-4611

4.9 · MEDIUM

Integer overflow in the perf_event_interrupt function in arch/powerpc/kernel/perf_event.c in the Linux kernel before 2.6.39 on powerpc platforms allows local users to cause a denial of service (unh…

Published May 17, 2012linuxCWE-189EPSS 0.40%

Overview

CVE-2011-4611 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 17, 2012 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

Integer overflow in the perf_event_interrupt function in arch/powerpc/kernel/perf_event.c in the Linux kernel before 2.6.39 on powerpc platforms allows local users to cause a denial of service (unhandled performance monitor exception) via vectors that trigger certain outcomes of performance events.

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, < 2.6.39Affected

References

Refftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0837e3242c73566fc1c0196b4ec61779c25ffc93Refwww.openwall.com/lists/oss-security/2011/12/15/2Refbugzilla.redhat.com/show_bug.cgi?id=767914GitHubgithub.com/torvalds/linux/commit/0837e3242c73566fc1c0196b4ec61779c25ffc93Refftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0837e3242c73566fc1c0196b4ec61779c25ffc93Refwww.openwall.com/lists/oss-security/2011/12/15/2Refbugzilla.redhat.com/show_bug.cgi?id=767914GitHubgithub.com/torvalds/linux/commit/0837e3242c73566fc1c0196b4ec61779c25ffc93

How CyberStrike helps

Frequently asked questions

What is CVE-2011-4611?

CVE-2011-4611 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 17, 2012 and has a CVSS 2.0 base score of 4.9 (MEDIUM).

How severe is CVE-2011-4611?

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-2011-4611?

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-2011-4611?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-4611 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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