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.

CVSS v3 5.5 MEDIUM
CVSS v2.0 4.9 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

4.9^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 3.9 / Impact : 6.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c	Issue Tracking Patch Vendor Advisory
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
https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sig	Patch Vendor Advisory
https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sig	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2018-08-01 06:29

Updated : 2023-12-10 12:44

NVD link : CVE-2018-14775

Mitre link : CVE-2018-14775

CVE.ORG link : CVE-2018-14775

JSON object : View

Products Affected

openbsd

openbsd

CWE

CWE-20

Improper Input Validation

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