National Cyber Awareness System
Vulnerability Summary for CVE-2014-0998
Original release date: 02/02/2015
Last revised: 02/04/2015
Source: US-CERT/NIST
Overview
Integer signedness error in the vt console driver (formerly Newcons) in FreeBSD 10.1 allows local users to cause a denial of service (crash) and possibly gain privileges via a negative value in a VT_WAITACTIVE ioctl call, which triggers an array index error and out-of-bounds kernel memory access.
Impact
CVSS Severity (version 2.0):
Impact Subscore: 10.0
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
References to Advisories, Solutions, and Tools
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External Source: MISC
Name: http://www.coresecurity.com/advisories/freebsd-kernel-multiple-vulnerabilities
External Source: BUGTRAQ
Name: 20150127 [CORE-2015-0003] – FreeBSD Kernel Multiple Vulnerabilities
External Source: FULLDISC
Name: 20150127 [CORE-2015-0003] – FreeBSD Kernel Multiple Vulnerabilities
Vulnerable software and versions
+ Configuration 1
+ OR
* cpe:/o:freebsd:freebsd:10.1
Technical Details
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