Home/CVE/Integer signedness error in the amd64_set_ldt function in sys/amd64/amd64/sys_machdep.c in FreeBSD 9.3 before p39, 10.1
CVE

CVE-2016-1885

Integer signedness error in the amd64_set_ldt function in sys/amd64/amd64/sys_machdep.c in FreeBSD 9.3 before p39, 10.1

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.

MEDIUM · CVSS 6.2 EPSS 0.0015
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

1
freebsdall versions
⚠

Public Exploits & PoCs

3
dosFreeBSD 10.2 (x64) - 'amd64_set_ldt' Heap Overflowverified
pocpacketstormsecurity.com · FreeBSD-Kernel-amd64_set_ldt-Heap-Overflow.htmlpacketstormsecurity.com
pocwww.exploit-db.com · 39570www.exploit-db.com
▣

Scoring & Timeline

6.2
MEDIUM · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 Apr 2016 · 02:00 AM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2016/Mar/56
http://seclists.org/fulldisclosure/2016/Mar/67
http://www.coresecurity.com/advisories/freebsd-kernel-amd64setldt-heap-overflow
http://www.securityfocus.com/archive/1/537812/100/0/threaded
http://www.securityfocus.com/archive/1/537813/100/0/threaded
http://www.securitytracker.com/id/1035309
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