CVE-2016-1886
CVSS V2 High 7.2
CVSS V3 High 7.8
Description
Integer signedness error in the genkbd_commonioctl function in sys/dev/kbd/kbd.c in FreeBSD 9.3 before p42, 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to obtain sensitive information from kernel memory, cause a denial of service (memory overwrite and kernel crash), or gain privileges via a negative value in the flen structure member in the arg argument in a SETFKEY ioctl call, which triggers a "two way heap and stack overflow."
Overview
- CVE ID
- CVE-2016-1886
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2016-05-25T15:59:02
- Last Modified Date
- 2017-04-20T01:59:00
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:freebsd:freebsd:9.3:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:10.1:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:10.2:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:10.3:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 7.2
- Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 10
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://security.FreeBSD.org/patches/SA-16:18/atkbd.patch | Patch |
| https://www.freebsd.org/security/advisories/FreeBSD-SA-16:18.atkbd.asc | Vendor Advisory |
| http://cturt.github.io/SETFKEY.html | Exploit |
| http://www.securitytracker.com/id/1035905 | |
| http://www.securityfocus.com/bid/90734 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2016-1886 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1886 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 09:44:34 | Added to TrackCVE | |||
| 2022-12-02 09:41:14 | 2016-05-25T15:59Z | 2016-05-25T15:59:02 | CVE Published Date | updated |
| 2022-12-02 09:41:14 | 2017-04-20T01:59:00 | CVE Modified Date | updated | |
| 2022-12-02 09:41:14 | Modified | Vulnerability Status | updated |