CVE Vulnerability

CVE-2018-14775

tss_alloc in sys/arch/i386/i386/gdt.c in OpenBSD 6.2 and 6.3 has a Local Denial of Service (system crash) due to incorrect I/O port access control on the i386 architecture.

4.9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sig Patch Vendor Advisory
https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sig Patch Vendor Advisory
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c Issue Tracking Patch
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c.diff?r1=1.37&r2=1.37.8.1&f=h Patch Vendor Advisory
http://www.securitytracker.com/id/1041550 Third Party Advisory VDB Entry
Configurations

Configuration 1

cpe:2.3:o:openbsd:openbsd:6.2:*:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:6.3:*:*:*:*:*:*:*
Information

Published : 2018-08-01 06:29

Updated : 2018-10-03 07:13

NVD link : CVE-2018-14775

Mitre link : CVE-2018-14775

Products Affected
No products.
CWE
CWE-20