CVE-2022-0778

{"id": "CVE-2022-0778", "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:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "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": "2022-03-15T17:15:08.513", "references": [{"url": "http://packetstormsecurity.com/files/167344/OpenSSL-1.0.2-1.1.1-3.0-BN_mod_sqrt-Infinite-Loop.html", "tags": ["Third Party Advisory", "VDB Entry"], "source": "openssl-security@openssl.org"}, {"url": "http://seclists.org/fulldisclosure/2022/May/33", "tags": ["Mailing List", "Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "http://seclists.org/fulldisclosure/2022/May/35", "tags": ["Mailing List", "Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "http://seclists.org/fulldisclosure/2022/May/38", "tags": ["Mailing List", "Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-712929.pdf", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=3118eb64934499d93db3230748a452351d1d9a65", "source": "openssl-security@openssl.org"}, {"url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=380085481c64de749a6dd25cdf0bcf4360b30f83", "source": "openssl-security@openssl.org"}, {"url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=a466912611aa6cbdf550cd10601390e587451246", "source": "openssl-security@openssl.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00023.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00024.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/323SNN6ZX7PRJJWP2BUAFLPUAE42XWLZ/", "source": "openssl-security@openssl.org"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GDB3GQVJPXJE7X5C5JN6JAA4XUDWD6E6/", "source": "openssl-security@openssl.org"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W6K3PR542DXWLEFFMFIDMME4CWMHJRMG/", "source": "openssl-security@openssl.org"}, {"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0002", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://security.gentoo.org/glsa/202210-02", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://security.netapp.com/advisory/ntap-20220321-0002/", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://security.netapp.com/advisory/ntap-20220429-0005/", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://support.apple.com/kb/HT213255", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://support.apple.com/kb/HT213256", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://support.apple.com/kb/HT213257", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://www.debian.org/security/2022/dsa-5103", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://www.openssl.org/news/secadv/20220315.txt", "tags": ["Vendor Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://www.oracle.com/security-alerts/cpuapr2022.html", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://www.oracle.com/security-alerts/cpujul2022.html", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://www.tenable.com/security/tns-2022-06", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://www.tenable.com/security/tns-2022-07", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://www.tenable.com/security/tns-2022-08", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://www.tenable.com/security/tns-2022-09", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-835"}]}], "descriptions": [{"lang": "en", "value": "The BN_mod_sqrt() function, which computes a modular square root, contains a bug that can cause it to loop forever for non-prime moduli. Internally this function is used when parsing certificates that contain elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. It is possible to trigger the infinite loop by crafting a certificate that has invalid explicit curve parameters. Since certificate parsing happens prior to verification of the certificate signature, any process that parses an externally supplied certificate may thus be subject to a denial of service attack. The infinite loop can also be reached when parsing crafted private keys as they can contain explicit elliptic curve parameters. Thus vulnerable situations include: - TLS clients consuming server certificates - TLS servers consuming client certificates - Hosting providers taking certificates or private keys from customers - Certificate authorities parsing certification requests from subscribers - Anything else which parses ASN.1 elliptic curve parameters Also any other applications that use the BN_mod_sqrt() where the attacker can control the parameter values are vulnerable to this DoS issue. In the OpenSSL 1.0.2 version the public key is not parsed during initial parsing of the certificate which makes it slightly harder to trigger the infinite loop. However any operation which requires the public key from the certificate will trigger the infinite loop. In particular the attacker can use a self-signed certificate to trigger the loop during verification of the certificate signature. This issue affects OpenSSL versions 1.0.2, 1.1.1 and 3.0. It was addressed in the releases of 1.1.1n and 3.0.2 on the 15th March 2022. Fixed in OpenSSL 3.0.2 (Affected 3.0.0,3.0.1). Fixed in OpenSSL 1.1.1n (Affected 1.1.1-1.1.1m). Fixed in OpenSSL 1.0.2zd (Affected 1.0.2-1.0.2zc)."}, {"lang": "es", "value": "La funci\u00f3n BN_mod_sqrt(), que calcula una ra\u00edz cuadrada modular, contiene un error que puede causar un bucle eterno para m\u00f3dulos no primos. Internamente, esta funci\u00f3n es usado cuando son analizados certificados que contienen claves p\u00fablicas de curva el\u00edptica en forma comprimida o par\u00e1metros de curva el\u00edptica expl\u00edcitos con un punto base codificado en forma comprimida. Es posible desencadenar el bucle infinito si es dise\u00f1ado un certificado con par\u00e1metros de curva expl\u00edcitos no v\u00e1lidos. Dado que el an\u00e1lisis del certificado es realizado antes de la verificaci\u00f3n de la firma del certificado, cualquier proceso que analice un certificado suministrado externamente puede ser objeto de un ataque de denegaci\u00f3n de servicio. El bucle infinito tambi\u00e9n puede alcanzarse cuando son analizadas claves privadas dise\u00f1adas, ya que pueden contener par\u00e1metros expl\u00edcitos de la curva el\u00edptica. Por lo tanto, las situaciones vulnerables incluyen: - Clientes TLS que consumen certificados de servidor - Servidores TLS que consumen certificados de cliente - Proveedores de hosting que toman certificados o claves privadas de clientes - Autoridades de certificaci\u00f3n que analizan peticiones de certificaci\u00f3n de suscriptores - Cualquier otra cosa que analice par\u00e1metros de curva el\u00edptica ASN.1 Tambi\u00e9n cualquier otra aplicaci\u00f3n que utilice BN_mod_sqrt() donde el atacante pueda controlar los valores de los par\u00e1metros es vulnerable a este problema de DoS. En OpenSSL versi\u00f3n 1.0.2, la clave p\u00fablica no es analizada durante el an\u00e1lisis inicial del certificado, lo que dificulta ligeramente la activaci\u00f3n del bucle infinito. Sin embargo, cualquier operaci\u00f3n que requiera la clave p\u00fablica del certificado desencadenar\u00e1 el bucle infinito. En particular, el atacante puede usar un certificado autofirmado para desencadenar el bucle durante la verificaci\u00f3n de la firma del certificado. Este problema afecta a OpenSSL versiones 1.0.2, 1.1.1 y 3.0. Fue abordado en las versiones 1.1.1n y 3.0.2 del 15 de marzo de 2022. Corregido en OpenSSL versi\u00f3n 3.0.2 (Afectado 3.0.0,3.0.1). Corregido en OpenSSL versi\u00f3n 1.1.1n (Afectado 1.1.1-1.1.1m). Corregido en OpenSSL versi\u00f3n 1.0.2zd (Afectado 1.0.2-1.0.2zc)"}], "lastModified": "2023-11-07T03:41:33.873", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F3BC593C-D7BB-42A8-9488-BE910A8C3B68", "versionEndExcluding": "1.0.2zd", "versionStartIncluding": "1.0.2"}, {"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "16D7B14C-9D04-40AC-9FCE-73D3DF468DB2", "versionEndExcluding": "1.1.1n", "versionStartIncluding": "1.1.0"}, {"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E7225F27-E0BC-4716-AF68-8D68EE90F7CE", "versionEndExcluding": "3.0.2", "versionStartIncluding": "3.0.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}, 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