cve/2016/CVE-2016-1885.md

CVE-2016-1885

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.

POC

Reference

• http://packetstormsecurity.com/files/136276/FreeBSD-Kernel-amd64_set_ldt-Heap-Overflow.html
• http://seclists.org/fulldisclosure/2016/Mar/56
• http://www.coresecurity.com/advisories/freebsd-kernel-amd64setldt-heap-overflow
• https://www.exploit-db.com/exploits/39570/

Github

• https://github.com/ARPSyndicate/cvemon