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CVE-2013-5666

4.7 · MEDIUM

The sendfile system-call implementation in sys/kern/uipc_syscalls.c in the kernel in FreeBSD 9.2-RC1 and 9.2-RC2 does not properly pad transmissions, which allows local users to obtain sensitive in…

Published Sep 23, 2013freebsdCWE-200EPSS 0.31%

Overview

CVE-2013-5666 is a medium-severity vulnerability affecting freebsd freebsd. It was published on September 23, 2013 and has a CVSS 2.0 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The sendfile system-call implementation in sys/kern/uipc_syscalls.c in the kernel in FreeBSD 9.2-RC1 and 9.2-RC2 does not properly pad transmissions, which allows local users to obtain sensitive information (kernel memory) via a length greater than the length of the file.

Remediation

Check the references section for vendor advisories and patches from freebsd. Update freebsd 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

Frequently asked questions

What is CVE-2013-5666?

CVE-2013-5666 is a medium-severity vulnerability affecting freebsd freebsd. It was published on September 23, 2013 and has a CVSS 2.0 base score of 4.7 (MEDIUM).

How severe is CVE-2013-5666?

This vulnerability has a CVSS 2.0 base score of 4.7, 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-2013-5666?

Check the references section for vendor advisories and patches from freebsd. Update freebsd 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-2013-5666?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-5666 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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