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CVE-2011-2480

7.5 · HIGH

Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and NetBSD when using certain non-x86 architectures.

Published Nov 27, 2019CWE-200EPSS 1.59%

Overview

CVE-2011-2480 is a high-severity vulnerability. It was published on November 27, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and NetBSD when using certain non-x86 architectures. A signedness error in the IEEE80211_IOC_CHANINFO ioctl allows a local unprivileged user to cause the kernel to copy large amounts of kernel memory back to the user, disclosing potentially sensitive information.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refaccess.redhat.com/security/cve/cve-2011-2480Refbugs.debian.org/cgi-bin/bugreport.cgi?bug=631160Refbugs.debian.org/cgi-bin/bugreport.cgi?bug=631161Refsecurity-tracker.debian.org/tracker/CVE-2011-2480Refwww.openwall.com/lists/oss-security/2011/06/20/15Refaccess.redhat.com/security/cve/cve-2011-2480Refbugs.debian.org/cgi-bin/bugreport.cgi?bug=631160Refbugs.debian.org/cgi-bin/bugreport.cgi?bug=631161Refsecurity-tracker.debian.org/tracker/CVE-2011-2480Refwww.openwall.com/lists/oss-security/2011/06/20/15

How CyberStrike helps

Frequently asked questions

What is CVE-2011-2480?

CVE-2011-2480 is a high-severity vulnerability. It was published on November 27, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2011-2480?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-2480?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2011-2480?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-2480 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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