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CVE-2013-5710

3.7 · LOW

The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2 allows local users with certain permissions to bypass access restrictions via a hardlink in a nullfs…

Published Sep 23, 2013freebsdCWE-264EPSS 0.29%

Overview

CVE-2013-5710 is a low-severity vulnerability affecting freebsd freebsd. It was published on September 23, 2013 and has a CVSS 2.0 base score of 3.7 (LOW).

This vulnerability has a CVSS 2.0 base score of 3.7, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2 allows local users with certain permissions to bypass access restrictions via a hardlink in a nullfs instance to a file in a different instance.

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

References

Refsecunia.com/advisories/54861Refsvnweb.freebsd.org/base?view=revision&revision=255442Refwww.debian.org/security/2013/dsa-2769Refwww.freebsd.org/security/advisories/FreeBSD-SA-13:13.nullfs.ascRefwww.securitytracker.com/id/1029015Refsecunia.com/advisories/54861Refsvnweb.freebsd.org/base?view=revision&revision=255442Refwww.debian.org/security/2013/dsa-2769Refwww.freebsd.org/security/advisories/FreeBSD-SA-13:13.nullfs.ascRefwww.securitytracker.com/id/1029015

How CyberStrike helps

Frequently asked questions

What is CVE-2013-5710?

CVE-2013-5710 is a low-severity vulnerability affecting freebsd freebsd. It was published on September 23, 2013 and has a CVSS 2.0 base score of 3.7 (LOW).

How severe is CVE-2013-5710?

This vulnerability has a CVSS 2.0 base score of 3.7, rated LOW. 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-2013-5710?

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-2013-5710?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-5710 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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