{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"cveId": "CVE-2023-0286", "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5", "state": "PUBLISHED", "assignerShortName": "openssl", "dateReserved": "2023-01-13T10:40:41.259Z", "datePublished": "2023-02-08T19:01:50.514Z", "dateUpdated": "2023-03-27T18:25:32.958867Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "OpenSSL", "vendor": "OpenSSL", "versions": [{"lessThan": "3.0.8", "status": "affected", "version": "3.0.0", "versionType": "semver"}, {"lessThan": "1.1.1t", "status": "affected", "version": "1.1.1", "versionType": "custom"}, {"lessThan": "1.0.2zg", "status": "affected", "version": "1.0.2", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "reporter", "user": "00000000-0000-4000-9000-000000000000", "value": "David Benjamin (Google)"}, {"lang": "en", "type": "remediation developer", "user": "00000000-0000-4000-9000-000000000000", "value": "Hugo Landau"}], "datePublic": "2023-02-07T00:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "There is a type confusion vulnerability relating to X.400 address processing<br>inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but<br>the public structure definition for GENERAL_NAME incorrectly specified the type<br>of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by<br>the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an<br>ASN1_STRING.<br><br>When CRL checking is enabled (i.e. the application sets the<br>X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass<br>arbitrary pointers to a memcmp call, enabling them to read memory contents or<br>enact a denial of service. In most cases, the attack requires the attacker to<br>provide both the certificate chain and CRL, neither of which need to have a<br>valid signature. If the attacker only controls one of these inputs, the other<br>input must already contain an X.400 address as a CRL distribution point, which<br>is uncommon. As such, this vulnerability is most likely to only affect<br>applications which have implemented their own functionality for retrieving CRLs<br>over a network.<br><br>"}], "value": "There is a type confusion vulnerability relating to X.400 address processing\ninside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but\nthe public structure definition for GENERAL_NAME incorrectly specified the type\nof the x400Address field as ASN1_TYPE. This field is subsequently interpreted by\nthe OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an\nASN1_STRING.\n\nWhen CRL checking is enabled (i.e. the application sets the\nX509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass\narbitrary pointers to a memcmp call, enabling them to read memory contents or\nenact a denial of service. In most cases, the attack requires the attacker to\nprovide both the certificate chain and CRL, neither of which need to have a\nvalid signature. If the attacker only controls one of these inputs, the other\ninput must already contain an X.400 address as a CRL distribution point, which\nis uncommon. As such, this vulnerability is most likely to only affect\napplications which have implemented their own functionality for retrieving CRLs\nover a network.\n\n"}], "metrics": [{"format": "other", "other": {"content": {"text": "High"}, "type": "https://www.openssl.org/policies/secpolicy.html"}}], "problemTypes": [{"descriptions": [{"description": " type confusion vulnerability", "lang": "en"}]}], "providerMetadata": {"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5", "shortName": "openssl", "dateUpdated": "2023-03-27T18:25:32.958867Z"}, "references": [{"name": "OpenSSL Advisory", "tags": ["vendor-advisory"], "url": "https://www.openssl.org/news/secadv/20230207.txt"}, {"name": "3.0.8 git commit", "tags": ["patch"], "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2f7530077e0ef79d98718138716bc51ca0cad658"}, {"name": "1.1.1t git commit", "tags": ["patch"], "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2c6c9d439b484e1ba9830d8454a34fa4f80fdfe9"}, {"name": "1.0.2zg patch (premium)", "tags": ["patch"], "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fd2af07dc083a350c959147097003a14a5e8ac4d"}, {"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/018_x509.patch.sig"}, {"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.2-relnotes.txt"}, {"url": "https://security.gentoo.org/glsa/202402-08"}], "source": {"discovery": "UNKNOWN"}, "title": "X.400 address type confusion in X.509 GeneralName", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}}}

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As such, this vulnerability is most likely to only affect\napplications which have implemented their own functionality for retrieving CRLs\nover a network.\n\n"}], "id": "CVE-2023-0286", "lastModified": "2024-02-04T09:15:09.113", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-02-08T20:15:24.267", "references": [{"source": "openssl-security@openssl.org", "tags": ["Third Party Advisory"], "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.2-relnotes.txt"}, {"source": "openssl-security@openssl.org", "tags": ["Third Party Advisory"], "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/018_x509.patch.sig"}, {"source": "openssl-security@openssl.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2c6c9d439b484e1ba9830d8454a34fa4f80fdfe9"}, {"source": "openssl-security@openssl.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2f7530077e0ef79d98718138716bc51ca0cad658"}, {"source": "openssl-security@openssl.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fd2af07dc083a350c959147097003a14a5e8ac4d"}, {"source": "openssl-security@openssl.org", "url": "https://security.gentoo.org/glsa/202402-08"}, {"source": "openssl-security@openssl.org", "tags": ["Vendor Advisory"], "url": "https://www.openssl.org/news/secadv/20230207.txt"}], "sourceIdentifier": "openssl-security@openssl.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-843"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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