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CVE-2013-2171

6.9 · MEDIUM

The vm_map_lookup function in sys/vm/vm_map.c in the mmap implementation in the kernel in FreeBSD 9.0 through 9.1-RELEASE-p4 does not properly determine whether a task should have write access to a…

Published Jul 2, 2013freebsdCWE-264EPSS 6.94%

Overview

CVE-2013-2171 is a medium-severity vulnerability affecting freebsd freebsd. It was published on July 2, 2013 and has a CVSS 2.0 base score of 6.9 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The vm_map_lookup function in sys/vm/vm_map.c in the mmap implementation in the kernel in FreeBSD 9.0 through 9.1-RELEASE-p4 does not properly determine whether a task should have write access to a memory location, which allows local users to bypass filesystem write permissions and consequently gain privileges via a crafted application that leverages read permissions, and makes mmap and ptrace system calls.

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

Refsvnweb.freebsd.org/base?view=revision&revision=251901Refwww.debian.org/security/2013/dsa-2714Refwww.freebsd.org/security/advisories/FreeBSD-SA-13:06.mmap.ascRefsvnweb.freebsd.org/base?view=revision&revision=251901Refwww.debian.org/security/2013/dsa-2714Refwww.freebsd.org/security/advisories/FreeBSD-SA-13:06.mmap.asc

How CyberStrike helps

Frequently asked questions

What is CVE-2013-2171?

CVE-2013-2171 is a medium-severity vulnerability affecting freebsd freebsd. It was published on July 2, 2013 and has a CVSS 2.0 base score of 6.9 (MEDIUM).

How severe is CVE-2013-2171?

This vulnerability has a CVSS 2.0 base score of 6.9, 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-2013-2171?

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-2013-2171?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-2171 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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