CVE-2018-14775

MEDIUM

OpenBSD 6.2-6.3 - Local Denial of Service via I/O Port Access Control

Title source: llm

Description

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.

References (5)

Core 5

Core References

Patch, Vendor Advisory x_refsource_misc

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 x_refsource_misc

https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sig

Patch, Vendor Advisory x_refsource_misc

https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sig

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1041550

Issue Tracking, Patch, Vendor Advisory x_refsource_misc

http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c

Scores

CVSS v3 5.5

EPSS 0.0005

EPSS Percentile 14.2%

Attack Vector LOCAL

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-20

Status published

Products (2)

openbsd/openbsd 6.2

openbsd/openbsd 6.3

Published Aug 01, 2018

Tracked Since Feb 18, 2026