CVE-2018-9234

GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://dev.gnupg.org/T3844	Issue Tracking Third Party Advisory
https://usn.ubuntu.com/3675-1/	Third Party Advisory
https://dev.gnupg.org/T3844	Issue Tracking Third Party Advisory
https://usn.ubuntu.com/3675-1/	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gnupg:gnupg:2.2.4:::::::*
	cpe:2.3:a:gnupg:gnupg:2.2.5:::::::*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:17.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::

History

21 Nov 2024, 04:15

Type	Values Removed	Values Added
References	~~() https://dev.gnupg.org/T3844 - Issue Tracking, Third Party Advisory~~	() https://dev.gnupg.org/T3844 - Issue Tracking, Third Party Advisory
References	~~() https://usn.ubuntu.com/3675-1/ - Third Party Advisory~~	() https://usn.ubuntu.com/3675-1/ - Third Party Advisory

Information

Published : 2018-04-04 00:29

Updated : 2024-11-21 04:15

NVD link : CVE-2018-9234

Mitre link : CVE-2018-9234

CVE.ORG link : CVE-2018-9234

JSON object : View

Products Affected

gnupg

gnupg

canonical

ubuntu_linux

CWE

CWE-320

Key Management Errors

{"id": "CVE-2018-9234", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2018-04-04T00:29:00.227", "references": [{"url": "https://dev.gnupg.org/T3844", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://usn.ubuntu.com/3675-1/", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://dev.gnupg.org/T3844", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://usn.ubuntu.com/3675-1/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-320"}]}], "descriptions": [{"lang": "en", "value": "GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey."}, {"lang": "es", "value": "GnuPG 2.2.4 y 2.2.5 no aplica una configuraci\u00f3n en la que la certificaci\u00f3n de claves requiere una clave maestra Certify offline. Esto resulta en que certificados aparentemente v\u00e1lidos ocurran solo con acceso a una subclave de firma."}], "lastModified": "2024-11-21T04:15:10.713", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:gnupg:gnupg:2.2.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3E01720E-775D-4A63-9BC0-FF61549FBC1D"}, {"criteria": "cpe:2.3:a:gnupg:gnupg:2.2.5:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "80550226-BF2F-45E4-8B51-8E6886AA58F6"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9070C9D8-A14A-467F-8253-33B966C16886"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}