{"id":"CVE-2018-14775","aliases":["EUVD-2018-6659","GHSA-69h5-9vj8-c9pg"],"status":"published","title":"tss_alloc in sys/arch/i386/i386/gdt.c in OpenBSD 6.2 and 6.3 has a Local Denial of Service ...","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.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00341,"percentile":0.27827,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2018-08-01T06:00:00Z","modified":"2026-06-17T01:41:36Z","products":[{"vendor":"openbsd","product":"openbsd"}],"references":[{"url":"http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c.diff?r1=1.37\u0026r2=1.37.8.1\u0026f=h","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sig","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sig","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1041550","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-14775"},{"url":"https://github.com/advisories/GHSA-69h5-9vj8-c9pg"}],"sources":{"cve":[{"id":"CVE-2018-14775","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.","status":"published","published":"2018-08-01T06:00:00Z","modified":"2024-08-05T09:38:13.968Z","updated_at":"2026-11-02T14:35:00.589142Z"}],"euvd":[{"id":"EUVD-2018-6659","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.","status":"published","published":"2018-08-01T06:00:00Z","modified":"2024-08-05T09:38:13Z","updated_at":"2026-11-03T02:39:45.703245Z"}],"ghsa":[{"id":"GHSA-69h5-9vj8-c9pg","title":"tss_alloc in sys/arch/i386/i386/gdt.c in OpenBSD 6.2 and 6.3 has a Local Denial of Service ...","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.","status":"published","published":"2022-05-14T02:57:31Z","modified":"2023-02-02T05:07:17Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:52:28.437617Z"}],"nvd":[{"id":"CVE-2018-14775","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.","status":"published","published":"2018-08-01T06:29:00.633Z","modified":"2026-06-17T01:41:36.96Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:04:35.310988Z"}]}}