CVE-2019-20432

In the Lustre file system before 2.12.3, the mdt module has an out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. mdt_file_secctx_unpack does not validate the value of name_size derived from req_capsule_get_size.

CVSS v3 7.5 HIGH
CVSS v2.0 7.8 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.8^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
http://lustre.org/	Product Vendor Advisory
http://wiki.lustre.org/Lustre_2.12.3_Changelog	Release Notes Vendor Advisory
https://jira.whamcloud.com/browse/LU-12604	Exploit Issue Tracking Third Party Advisory
https://review.whamcloud.com/#/c/35868/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:lustre:lustre:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-01-27 05:15

Updated : 2024-02-28 17:28

NVD link : CVE-2019-20432

Mitre link : CVE-2019-20432

CVE.ORG link : CVE-2019-20432

JSON object : View

Products Affected

lustre

lustre

CWE

CWE-787

Out-of-bounds Write

{"id": "CVE-2019-20432", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2020-01-27T05:15:12.577", "references": [{"url": "http://lustre.org/", "tags": ["Product", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://wiki.lustre.org/Lustre_2.12.3_Changelog", "tags": ["Release Notes", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://jira.whamcloud.com/browse/LU-12604", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://review.whamcloud.com/#/c/35868/", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "In the Lustre file system before 2.12.3, the mdt module has an out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. mdt_file_secctx_unpack does not validate the value of name_size derived from req_capsule_get_size."}, {"lang": "es", "value": "En el sistema de archivos de Luster versiones anteriores versiones hasta 2.12.3, el m\u00f3dulo mdt presenta un acceso fuera de l\u00edmites y un p\u00e1nico debido a la falta de comprobaci\u00f3n para campos de paquetes espec\u00edficos enviados mediante un cliente. La funci\u00f3n mdt_file_secctx_unpack no comprueba el valor de name_size derivado de req_capsule_get_size."}], "lastModified": "2020-01-28T16:10:12.000", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:lustre:lustre:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "172579FA-E7BC-4490-BA7D-1B5737B84154", "versionEndExcluding": "2.12.3"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}