CVE-2006-4435

View on CVE.org

Published Aug 29, 2006 CVSS 2.0 · 4.9 Medium EPSS < 1% KEV · Not listed

Description

OpenBSD 3.8, 3.9, and possibly earlier versions allows context-dependent attackers to cause a denial of service (kernel panic) by allocating more semaphores than the default.

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:3.8:::::::*
	cpe:2.3:o:openbsd:openbsd:3.9:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2006-4423	OpenBSD 3.8, 3.9, and possibly earlier versions allows context-dependent attackers to cause a denial of service (kernel panic) by allocating more semaphores than the default.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

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% (0.339% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
http://secunia.com/advisories/21642
http://securitytracker.com/id?1016756
http://www.openbsd.org/errata.html#sem
http://www.openbsd.org/errata38.html#sem
http://www.osvdb.org/28195
http://www.securityfocus.com/bid/19713
https://exchange.xforce.ibmcloud.com/vulnerabilities/28617

History

No history.

Subscriptions

Openbsd Openbsd

Weaknesses

NVD-CWE-Other

Sources

CVE record Updated: Aug 7, 2024, 7:06 PM

Status: PUBLISHED
Assigner: mitre
Published: Aug 29, 2006, 12:00 AM
Updated: Aug 7, 2024, 7:06 PM
Reserved: Aug 28, 2006, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 16, 2026, 10:29 PM

Status: Modified
Published: Aug 29, 2006, 12:04 AM
Modified: Jun 16, 2026, 10:29 PM

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": "2006-08-25T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "OpenBSD 3.8, 3.9, and possibly earlier versions allows context-dependent attackers to cause a denial of service (kernel panic) by allocating more semaphores than the default."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2017-07-19T15:57:01.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"name": "28195", "tags": ["vdb-entry", "x_refsource_OSVDB"], "url": "http://www.osvdb.org/28195"}, {"name": "1016756", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://securitytracker.com/id?1016756"}, {"name": "21642", "tags": ["third-party-advisory", "x_refsource_SECUNIA"], "url": "http://secunia.com/advisories/21642"}, {"name": "19713", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/19713"}, {"name": "[3.9] 20060825 007: SECURITY FIX: August 25, 2006", "tags": ["vendor-advisory", "x_refsource_OPENBSD"], "url": "http://www.openbsd.org/errata.html#sem"}, {"name": "[3.8] 20060825 012: SECURITY FIX: August 25, 2006", "tags": ["vendor-advisory", "x_refsource_OPENBSD"], "url": "http://www.openbsd.org/errata38.html#sem"}, {"name": "openbsd-semaphores-dos(28617)", "tags": ["vdb-entry", "x_refsource_XF"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/28617"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2006-4435", "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": "OpenBSD 3.8, 3.9, and possibly earlier versions allows context-dependent attackers to cause a denial of service (kernel panic) by allocating more semaphores than the default."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "28195", "refsource": "OSVDB", "url": "http://www.osvdb.org/28195"}, {"name": "1016756", "refsource": "SECTRACK", "url": "http://securitytracker.com/id?1016756"}, {"name": "21642", "refsource": "SECUNIA", "url": "http://secunia.com/advisories/21642"}, {"name": "19713", "refsource": "BID", "url": "http://www.securityfocus.com/bid/19713"}, {"name": "[3.9] 20060825 007: SECURITY FIX: August 25, 2006", "refsource": "OPENBSD", "url": "http://www.openbsd.org/errata.html#sem"}, {"name": "[3.8] 20060825 012: SECURITY FIX: August 25, 2006", "refsource": "OPENBSD", "url": "http://www.openbsd.org/errata38.html#sem"}, {"name": "openbsd-semaphores-dos(28617)", "refsource": "XF", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/28617"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-07T19:06:07.963Z"}, "title": "CVE Program Container", "references": [{"name": "28195", "tags": ["vdb-entry", "x_refsource_OSVDB", "x_transferred"], "url": "http://www.osvdb.org/28195"}, {"name": "1016756", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://securitytracker.com/id?1016756"}, {"name": "21642", "tags": ["third-party-advisory", "x_refsource_SECUNIA", "x_transferred"], "url": "http://secunia.com/advisories/21642"}, {"name": "19713", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/19713"}, {"name": "[3.9] 20060825 007: SECURITY FIX: August 25, 2006", "tags": ["vendor-advisory", "x_refsource_OPENBSD", "x_transferred"], "url": "http://www.openbsd.org/errata.html#sem"}, {"name": "[3.8] 20060825 012: SECURITY FIX: August 25, 2006", "tags": ["vendor-advisory", "x_refsource_OPENBSD", "x_transferred"], "url": "http://www.openbsd.org/errata38.html#sem"}, {"name": "openbsd-semaphores-dos(28617)", "tags": ["vdb-entry", "x_refsource_XF", "x_transferred"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/28617"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2006-4435", "datePublished": "2006-08-29T00:00:00.000Z", "dateReserved": "2006-08-28T00:00:00.000Z", "dateUpdated": "2024-08-07T19:06:07.963Z", "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:3.8:*:*:*:*:*:*:*", "matchCriteriaId": "783973F9-2A6E-4DDF-A64C-7794FFD0B7B9", "vulnerable": true}, {"criteria": "cpe:2.3:o:openbsd:openbsd:3.9:*:*:*:*:*:*:*", "matchCriteriaId": "F5BB6C5D-4C43-4BB8-B1CE-A70BBE650CA1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenBSD 3.8, 3.9, and possibly earlier versions allows context-dependent attackers to cause a denial of service (kernel panic) by allocating more semaphores than the default."}, {"lang": "es", "value": "OpenBSD 3.8, 3.9,y posiblemente versiones anteriores permiten a un atacante dependiente del contexto provocar denegaci\u00f3n de servicio (kernel panic) destinando mas semaforos que los que hay por defecto."}], "id": "CVE-2006-4435", "lastModified": "2026-06-16T22:29:05.727", "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}]}, "published": "2006-08-29T00:04:00.000", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "http://secunia.com/advisories/21642"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "http://securitytracker.com/id?1016756"}, {"source": "cve@mitre.org", "url": "http://www.openbsd.org/errata.html#sem"}, {"source": "cve@mitre.org", "url": "http://www.openbsd.org/errata38.html#sem"}, {"source": "cve@mitre.org", "url": "http://www.osvdb.org/28195"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "http://www.securityfocus.com/bid/19713"}, {"source": "cve@mitre.org", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/28617"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "http://secunia.com/advisories/21642"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://securitytracker.com/id?1016756"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openbsd.org/errata.html#sem"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openbsd.org/errata38.html#sem"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.osvdb.org/28195"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://www.securityfocus.com/bid/19713"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/28617"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}