CVE-2006-1206 - Vulnerability Details - OpenCVE

Description

Matt Johnston Dropbear SSH server 0.47 and earlier, as used in embedded Linux devices and on general-purpose operating systems, allows remote attackers to cause a denial of service (connection slot exhaustion) via a large number of connection attempts that exceeds the MAX_UNAUTH_CLIENTS defined value of 30.

Published: 2006-03-14

Score: 5.0 Medium

EPSS: 12.2% Moderate

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

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 [-]

cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2006-1210	Matt Johnston Dropbear SSH server 0.47 and earlier, as used in embedded Linux devices and on general-purpose operating systems, allows remote attackers to cause a denial of service (connection slot exhaustion) via a large number of connection attempts that exceeds the MAX_UNAUTH_CLIENTS defined value of 30.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.12227.

Key SSVC decision points have not yet been added.

References

Link	Providers
http://securitytracker.com/id?1015742
http://www.securityfocus.com/archive/1/426999/100/0/threaded
http://www.securityfocus.com/bid/17024
https://exchange.xforce.ibmcloud.com/vulnerabilities/25075

History

No history.

Subscriptions

Dropbear Ssh Project Dropbear Ssh

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2006-03-14T01:00:00.000Z

Updated: 2024-08-07T17:03:28.554Z

Reserved: 2006-03-14T00:00:00.000Z

Link: CVE-2006-1206

Vulnrichment

No data.

NVD

Status : Modified

Published: 2006-03-14T01:06:00.000

Modified: 2026-04-16T00:27:16.627

Link: CVE-2006-1206

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

NVD-CWE-Other

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2006-03-07T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "Matt Johnston Dropbear SSH server 0.47 and earlier, as used in embedded Linux devices and on general-purpose operating systems, allows remote attackers to cause a denial of service (connection slot exhaustion) via a large number of connection attempts that exceeds the MAX_UNAUTH_CLIENTS defined value of 30."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-10-18T14:57:01.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"name": "20060307 Dropbear SSH server Denial of Service", "tags": ["mailing-list", "x_refsource_BUGTRAQ"], "url": "http://www.securityfocus.com/archive/1/426999/100/0/threaded"}, {"name": "17024", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/17024"}, {"name": "dropbear-connection-dos(25075)", "tags": ["vdb-entry", "x_refsource_XF"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/25075"}, {"name": "1015742", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://securitytracker.com/id?1015742"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2006-1206", "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": "Matt Johnston Dropbear SSH server 0.47 and earlier, as used in embedded Linux devices and on general-purpose operating systems, allows remote attackers to cause a denial of service (connection slot exhaustion) via a large number of connection attempts that exceeds the MAX_UNAUTH_CLIENTS defined value of 30."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "20060307 Dropbear SSH server Denial of Service", "refsource": "BUGTRAQ", "url": "http://www.securityfocus.com/archive/1/426999/100/0/threaded"}, {"name": "17024", "refsource": "BID", "url": "http://www.securityfocus.com/bid/17024"}, {"name": "dropbear-connection-dos(25075)", "refsource": "XF", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/25075"}, {"name": "1015742", "refsource": "SECTRACK", "url": "http://securitytracker.com/id?1015742"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-07T17:03:28.554Z"}, "title": "CVE Program Container", "references": [{"name": "20060307 Dropbear SSH server Denial of Service", "tags": ["mailing-list", "x_refsource_BUGTRAQ", "x_transferred"], "url": "http://www.securityfocus.com/archive/1/426999/100/0/threaded"}, {"name": "17024", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/17024"}, {"name": "dropbear-connection-dos(25075)", "tags": ["vdb-entry", "x_refsource_XF", "x_transferred"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/25075"}, {"name": "1015742", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://securitytracker.com/id?1015742"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2006-1206", "datePublished": "2006-03-14T01:00:00.000Z", "dateReserved": "2006-03-14T00:00:00.000Z", "dateUpdated": "2024-08-07T17:03:28.554Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:*:*:*:*:*:*:*:*", "matchCriteriaId": "B6653951-CD62-46DF-A34A-9CA6FBA69AEB", "versionEndIncluding": "0.47", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Matt Johnston Dropbear SSH server 0.47 and earlier, as used in embedded Linux devices and on general-purpose operating systems, allows remote attackers to cause a denial of service (connection slot exhaustion) via a large number of connection attempts that exceeds the MAX_UNAUTH_CLIENTS defined value of 30."}], "id": "CVE-2006-1206", "lastModified": "2026-04-16T00:27:16.627", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2006-03-14T01:06:00.000", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://securitytracker.com/id?1015742"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/archive/1/426999/100/0/threaded"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/17024"}, {"source": "cve@mitre.org", "tags": ["VDB Entry"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/25075"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://securitytracker.com/id?1015742"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/archive/1/426999/100/0/threaded"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/17024"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["VDB Entry"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/25075"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}