CVE-2018-14775

View on CVE.org

Published Aug 1, 2018 CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed

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.

Analysis

No analysis available yet

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

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

No data.

No data available yet.

Remediation

No remediation available yet

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2018-6659	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.

Metrics

No CVSS v4.0

No CVSS v3.1

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Complete

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.341% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c
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
http://www.securitytracker.com/id/1041550
https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sig
https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sig

History

No history.

Subscriptions

Openbsd Openbsd

Weaknesses

CWE-20
Improper Input Validation

Sources

CVE record Updated: Aug 5, 2024, 9:38 AM

Status: PUBLISHED
Assigner: mitre
Published: Aug 1, 2018, 6:00 AM
Updated: Aug 5, 2024, 9:38 AM
Reserved: Aug 1, 2018, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 1:41 AM

Status: Modified
Published: Aug 1, 2018, 6:29 AM
Modified: Jun 17, 2026, 1:41 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2018-08-01T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-08-30T09:57:01.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "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"}, {"tags": ["x_refsource_MISC"], "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sig"}, {"tags": ["x_refsource_MISC"], "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sig"}, {"name": "1041550", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1041550"}, {"tags": ["x_refsource_MISC"], "url": "http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2018-14775", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "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", "refsource": "MISC", "url": "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"}, {"name": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sig", "refsource": "MISC", "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sig"}, {"name": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sig", "refsource": "MISC", "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sig"}, {"name": "1041550", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1041550"}, {"name": "http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c", "refsource": "MISC", "url": "http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T09:38:13.968Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "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"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sig"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sig"}, {"name": "1041550", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id/1041550"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2018-14775", "datePublished": "2018-08-01T06:00:00.000Z", "dateReserved": "2018-08-01T00:00:00.000Z", "dateUpdated": "2024-08-05T09:38:13.968Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:openbsd:openbsd:6.2:*:*:*:*:*:*:*", "matchCriteriaId": "05106657-059F-4845-BA6C-2B610515ABC6", "vulnerable": true}, {"criteria": "cpe:2.3:o:openbsd:openbsd:6.3:*:*:*:*:*:*:*", "matchCriteriaId": "3326FE9E-7B44-4F41-BF89-3115E36D1FF6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "tss_alloc en sys/arch/i386/i386/gdt.c en OpenBSD 6.2 y 6.3 tiene una denegaci\u00f3n de servicio (DoS) local (cierre inesperado del sistema) debido a un acceso incorrecto al puerto I/O en la arquitectura i386."}], "id": "CVE-2018-14775", "lastModified": "2026-06-17T01:41:36.960", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.9, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-08-01T06:29:00.633", "references": [{"source": "cve@mitre.org", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "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"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1041550"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sig"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sig"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "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"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1041550"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sig"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sig"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}