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.
Does this matter?
Lower severity and a low EPSS score (0.34%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.34% probability · 27th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- openbsd/openbsd
- Source
- cve@mitre.org
EPSS 0.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.cIssue 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=hPatch, Vendor Advisory
- http://www.securitytracker.com/id/1041550Third Party Advisory, VDB Entry
- https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sigPatch, Vendor Advisory
- https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sigPatch, Vendor Advisory
- http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.cIssue 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=hPatch, Vendor Advisory
- http://www.securitytracker.com/id/1041550Third Party Advisory, VDB Entry
- https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sigPatch, Vendor Advisory
- https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sigPatch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.