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CVE-2016-1885

6.2 · MEDIUM

Integer signedness error in the amd64_set_ldt function in sys/amd64/amd64/sys_machdep.c in FreeBSD 9.3 before p39, 10.1 before p31, and 10.2 before p14 allows local users to cause a denial of servi…

Published Apr 12, 2016CWE-119EPSS 1.26%

Overview

CVE-2016-1885 is a medium-severity vulnerability. It was published on April 12, 2016 and has a CVSS 3.0 base score of 6.2 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.2, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Integer signedness error in the amd64_set_ldt function in sys/amd64/amd64/sys_machdep.c in FreeBSD 9.3 before p39, 10.1 before p31, and 10.2 before p14 allows local users to cause a denial of service (kernel panic) via an i386_set_ldt system call, which triggers a heap-based buffer overflow.

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

Refpacketstormsecurity.com/files/136276/FreeBSD-Kernel-amd64_set_ldt-Heap-Overflow.htmlRefseclists.org/fulldisclosure/2016/Mar/56Refseclists.org/fulldisclosure/2016/Mar/67Refwww.coresecurity.com/advisories/freebsd-kernel-amd64setldt-heap-overflowRefwww.securityfocus.com/archive/1/537812/100/0/threadedRefwww.securityfocus.com/archive/1/537813/100/0/threadedRefwww.securitytracker.com/id/1035309Refsecurity.FreeBSD.org/advisories/FreeBSD-SA-16:15.sysarch.ascRefwww.exploit-db.com/exploits/39570/Refpacketstormsecurity.com/files/136276/FreeBSD-Kernel-amd64_set_ldt-Heap-Overflow.html

How CyberStrike helps

Frequently asked questions

What is CVE-2016-1885?

CVE-2016-1885 is a medium-severity vulnerability. It was published on April 12, 2016 and has a CVSS 3.0 base score of 6.2 (MEDIUM).

How severe is CVE-2016-1885?

This vulnerability has a CVSS 3.0 base score of 6.2, 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-2016-1885?

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-2016-1885?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-1885 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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