Vulnerability Details : CVE-2016-1889
Integer overflow in the bhyve hypervisor in FreeBSD 10.1, 10.2, 10.3, and 11.0 when configured with a large amount of guest memory, allows local users to gain privilege via a crafted device descriptor.
Vulnerability category: Overflow
Exploit prediction scoring system (EPSS) score for CVE-2016-1889
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-1889
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST |
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2016-1889
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The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-1889
-
http://www.securitytracker.com/id/1037400
FreeBSD bhyve Lets Local Users on a Guest System Gain Elevated Privileges on the Host System - SecurityTrackerThird Party Advisory;VDB Entry
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https://www.freebsd.org/security/advisories/FreeBSD-SA-16:38.bhyve.asc
Vendor Advisory
Products affected by CVE-2016-1889
- cpe:2.3:o:freebsd:freebsd:10.1:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:10.2:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:10.3:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.0:*:*:*:*:*:*:*