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CVE-2011-1083

4.9 · MEDIUM

The epoll implementation in the Linux kernel 2.6.37.2 and earlier does not properly traverse a tree of epoll file descriptors, which allows local users to cause a denial of service (CPU consumption…

Published Apr 4, 2011linuxCWE-400EPSS 0.80%

Overview

CVE-2011-1083 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 4, 2011 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 epoll implementation in the Linux kernel 2.6.37.2 and earlier does not properly traverse a tree of epoll file descriptors, which allows local users to cause a denial of service (CPU consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.

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

Refarticle.gmane.org/gmane.linux.kernel/1105744Refarticle.gmane.org/gmane.linux.kernel/1105888Refarticle.gmane.org/gmane.linux.kernel/1106686Reflists.opensuse.org/opensuse-security-announce/2012-04/msg00021.htmlReflists.opensuse.org/opensuse-security-announce/2012-05/msg00013.htmlRefopenwall.com/lists/oss-security/2011/03/02/1Refopenwall.com/lists/oss-security/2011/03/02/2Refrhn.redhat.com/errata/RHSA-2012-0862.htmlRefsecunia.com/advisories/43522Refsecunia.com/advisories/48115

How CyberStrike helps

Frequently asked questions

What is CVE-2011-1083?

CVE-2011-1083 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 4, 2011 and has a CVSS 2.0 base score of 4.9 (MEDIUM).

How severe is CVE-2011-1083?

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-2011-1083?

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-2011-1083?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-1083 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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