Vulnerability Details : 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 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.
Vulnerability category: OverflowDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2016-1885
Probability of exploitation activity in the next 30 days: 0.46%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 73 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-1885
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST |
6.2
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.5
|
3.6
|
NIST |
CWE ids for CVE-2016-1885
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The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-1885
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http://seclists.org/fulldisclosure/2016/Mar/67
Full Disclosure: Re: [CORE-2016-0005] - FreeBSD Kernel amd64_set_ldt Heap Overflow
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http://www.securityfocus.com/archive/1/537812/100/0/threaded
SecurityFocus
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http://www.securityfocus.com/archive/1/537813/100/0/threaded
SecurityFocus
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https://www.exploit-db.com/exploits/39570/
FreeBSD 10.2 (x64) - 'amd64_set_ldt' Heap OverflowExploit
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http://www.coresecurity.com/advisories/freebsd-kernel-amd64setldt-heap-overflow
FreeBSD Kernel amd64_set_ldt Heap Overflow | Core Security
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https://security.FreeBSD.org/advisories/FreeBSD-SA-16:15.sysarch.asc
Vendor Advisory
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http://packetstormsecurity.com/files/136276/FreeBSD-Kernel-amd64_set_ldt-Heap-Overflow.html
FreeBSD Kernel amd64_set_ldt Heap Overflow ≈ Packet StormExploit
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http://www.securitytracker.com/id/1035309
FreeBSD sysarch(2) Input Validation Flaw Lets Local Users Cause Denial of Service Conditions on the Target System - SecurityTracker
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http://seclists.org/fulldisclosure/2016/Mar/56
Full Disclosure: [CORE-2016-0005] - FreeBSD Kernel amd64_set_ldt Heap Overflow
Products affected by CVE-2016-1885
- cpe:2.3:o:freebsd:freebsd:9.3:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:10.1:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:10.2:*:*:*:*:*:*:*