Vulnerability CVE-2014-0998

Vulnerability Name:

CVE-2014-0998 (CCN-100599)

Assigned:

2014-01-07

Published:

2015-01-27

Updated:

2018-10-09

Summary:

Integer signedness error in the vt console driver (formerly Newcons) in FreeBSD 9.3 before p10 and 10.1 before p6 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.

CVSS v3 Severity:

9.3 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
5.3 Medium (Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C/E:U/RL:OF/RC:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

7.2 High (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
5.3 Medium (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C/E:U/RL:OF/RC:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-189

Vulnerability Consequences:

Gain Privileges

References:

Source: MITRE
Type: CNA
CVE-2014-0998

Source: CCN
Type: Full Disclosure Mailing List, Tue, 27 Jan 2015 17:52:19 -0300
[CORE-2015-0003] - FreeBSD Kernel Multiple Vulnerabilities

Source: FULLDISC
Type: Exploit
20150127 [CORE-2015-0003] - FreeBSD Kernel Multiple Vulnerabilities

Source: MISC
Type: Exploit
http://www.coresecurity.com/advisories/freebsd-kernel-multiple-vulnerabilities

Source: BUGTRAQ
Type: UNKNOWN
20150127 [CORE-2015-0003] - FreeBSD Kernel Multiple Vulnerabilities

Source: CCN
Type: BID-72344
FreeBSD 'sys/dev/vt/vt_core.c' Local Security Bypass Vulnerability

Source: XF
Type: UNKNOWN
freebsd-cve20140998-priv-esc(100599)

Source: CCN
Type: Packet Storm Security [01-28-2015]
FreeBSD Kernel Crash / Code Execution / Disclosure

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [01-29-2015]

Source: FREEBSD
Type: UNKNOWN
FreeBSD-EN-15:01

Source: CCN
Type: FreeBSD Security Advisory FreeBSD-SA-15:02.kmem
SCTP SCTP_SS_VALUE kernel memory corruption and disclosure

Vulnerable Configuration:

Configuration 1:

cpe:/o:freebsd:freebsd:10.1:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/o:freebsd:freebsd:10.0:-:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:8.4:-:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:9.3:*:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:10.1:*:*:*:*:*:*:*

Denotes that component is vulnerable

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