CVE-2016-1885

MEDIUM

FreeBSD <9.3p39, 10.1p31, 10.2p14 - DoS

Title source: llm

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.

Exploits (1)

exploitdb WORKING POC VERIFIED

by Core Security · cdosfreebsd_x86-64

https://www.exploit-db.com/exploits/39570

View Code ZIP pw:eip

References (9)

[Exploit] http://packetstormsecurity.com/files/136276/FreeBSD-Kernel-amd64_set_ldt-Heap-Overflow.html

[Mailing List] http://seclists.org/fulldisclosure/2016/Mar/56

[Mailing List] http://seclists.org/fulldisclosure/2016/Mar/67

[Various Sources] http://www.coresecurity.com/advisories/freebsd-kernel-amd64setldt-heap-overflow

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1035309

[Vendor Advisory] https://security.FreeBSD.org/advisories/FreeBSD-SA-16:15.sysarch.asc

[Exploit] https://www.exploit-db.com/exploits/39570/

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/archive/1/537812/100/0/threaded

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/archive/1/537813/100/0/threaded

Scores

CVSS v3 6.2

EPSS 0.0015

EPSS Percentile 35.3%

Attack Vector LOCAL

CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-119

Status draft

Affected Products (3)

freebsd/freebsd

freebsd/freebsd

freebsd/freebsd

Timeline

Published Apr 12, 2016

Tracked Since Feb 18, 2026