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CVE-2016-1885

Date: April 8, 2016

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.

Severity Score

Related Resources (11)

https://www.exploit-db.com/exploits/39570/
http://www.coresecurity.com/advisories/freebsd-kernel-amd64setldt-heap-overflow
http://www.securityfocus.com/archive/1/537813/100/0/threaded
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:15.sysarch.asc
http://seclists.org/fulldisclosure/2016/Mar/56
http://seclists.org/fulldisclosure/2016/Mar/67
http://packetstormsecurity.com/files/136276/FreeBSD-Kernel-amd64_set_ldt-Heap-Overflow.html
http://www.securityfocus.com/archive/1/537812/100/0/threaded
https://nvd.nist.gov/vuln/detail/CVE-2016-1885
http://www.securitytracker.com/id/1035309
https://www.mend.io/vulnerability-database/CVE-2016-1885

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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