CVE-2020-6078 - Vulnerability Details - OpenCVE

An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdns_recv, the return value of the mdns_read_header function is not checked, leading to an uninitialized variable usage that eventually results in a null pointer dereference, leading to service crash. An attacker can send a series of mDNS messages to trigger this vulnerability.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

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.

Key SSVC decision points have not yet been added.

Vendors	Products
Debian	Debian Linux
Videolabs	Libmicrodns

Configuration 1 [-]

cpe:2.3:a:videolabs:libmicrodns:0.1.0:*:*:*:*:*:*:*

Configuration 2 [-]

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

No data.

References

Link	Providers
https://security.gentoo.org/glsa/202005-10
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1001
https://www.debian.org/security/2020/dsa-4671

History

No history.

MITRE

Status: PUBLISHED

Assigner: talos

Published: 2020-03-24T20:39:31

Updated: 2024-08-04T08:47:41.076Z

Reserved: 2020-01-07T00:00:00

Link: CVE-2020-6078

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-03-24T21:15:14.363

Modified: 2024-11-21T05:35:03.050

Link: CVE-2020-6078

Redhat

No data.

{"containers": {"cna": {"affected": [{"product": "Videolabs", "vendor": "n/a", "versions": [{"status": "affected", "version": "Videolabs libmicrodns 0.1.0"}]}], "descriptions": [{"lang": "en", "value": "An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdns_recv, the return value of the mdns_read_header function is not checked, leading to an uninitialized variable usage that eventually results in a null pointer dereference, leading to service crash. An attacker can send a series of mDNS messages to trigger this vulnerability."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"description": "denial of service", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2022-04-19T17:35:37", "orgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b", "shortName": "talos"}, "references": [{"name": "DSA-4671", "tags": ["vendor-advisory", "x_refsource_DEBIAN"], "url": "https://www.debian.org/security/2020/dsa-4671"}, {"name": "GLSA-202005-10", "tags": ["vendor-advisory", "x_refsource_GENTOO"], "url": "https://security.gentoo.org/glsa/202005-10"}, {"tags": ["x_refsource_MISC"], "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1001"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "talos-cna@cisco.com", "ID": "CVE-2020-6078", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Videolabs", "version": {"version_data": [{"version_value": "Videolabs libmicrodns 0.1.0"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdns_recv, the return value of the mdns_read_header function is not checked, leading to an uninitialized variable usage that eventually results in a null pointer dereference, leading to service crash. An attacker can send a series of mDNS messages to trigger this vulnerability."}]}, "impact": {"cvss": {"baseScore": 7.5, "baseSeverity": "High", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "denial of service"}]}]}, "references": {"reference_data": [{"name": "DSA-4671", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2020/dsa-4671"}, {"name": "GLSA-202005-10", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/202005-10"}, {"name": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1001", "refsource": "MISC", "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1001"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T08:47:41.076Z"}, "title": "CVE Program Container", "references": [{"name": "DSA-4671", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "url": "https://www.debian.org/security/2020/dsa-4671"}, {"name": "GLSA-202005-10", "tags": ["vendor-advisory", "x_refsource_GENTOO", "x_transferred"], "url": "https://security.gentoo.org/glsa/202005-10"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1001"}]}]}, "cveMetadata": {"assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b", "assignerShortName": "talos", "cveId": "CVE-2020-6078", "datePublished": "2020-03-24T20:39:31", "dateReserved": "2020-01-07T00:00:00", "dateUpdated": "2024-08-04T08:47:41.076Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:videolabs:libmicrodns:0.1.0:*:*:*:*:*:*:*", "matchCriteriaId": "3E2CF82C-22D5-4713-9DD3-9950E80D7EB3", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdns_recv, the return value of the mdns_read_header function is not checked, leading to an uninitialized variable usage that eventually results in a null pointer dereference, leading to service crash. An attacker can send a series of mDNS messages to trigger this vulnerability."}, {"lang": "es", "value": "Se presenta una vulnerabilidad de denegaci\u00f3n de servicio explotable en la funcionalidad de an\u00e1lisis de mensajes de Videolabs libmicrodns versi\u00f3n 0.1.0. Cuando se analiza los mensajes mDNS en mdns_recv, el valor de retorno de la funci\u00f3n mdns_read_header no es comprobado, conllevando a un uso de la variable no inicializada que finalmente resulta en una desreferencia del puntero null, conllevando a un bloqueo del servicio. Un atacante puede enviar una serie de mensajes mDNS para desencadenar esta vulnerabilidad."}], "id": "CVE-2020-6078", "lastModified": "2024-11-21T05:35:03.050", "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}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "talos-cna@cisco.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-03-24T21:15:14.363", "references": [{"source": "talos-cna@cisco.com", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202005-10"}, {"source": "talos-cna@cisco.com", "tags": ["Exploit", "Technical Description", "Third Party Advisory"], "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1001"}, {"source": "talos-cna@cisco.com", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2020/dsa-4671"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202005-10"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Technical Description", "Third Party Advisory"], "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1001"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2020/dsa-4671"}], "sourceIdentifier": "talos-cna@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-252"}], "source": "nvd@nist.gov", "type": "Primary"}]}