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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "matchCriteriaId": "BB53FE62-B5D2-497B-A7E3-40FFE81A9653", "versionEndExcluding": "68.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68."}, {"lang": "es", "value": "Se presenta una vulnerabilidad donde es posible forzar a Network Security Services (NSS) para firmar CertificateVerify con firmas de PKCS#1 versi\u00f3n v1.5 cuando esas son las \u00fanicas anunciadas por el servidor en CertificateRequest en TLS versi\u00f3n 1.3. Las firmas de PKCS#1 versi\u00f3n v1.5 no deben ser usadas para mensajes de TLS versi\u00f3n 1.3. Esta vulnerabilidad afecta a Firefox anterior a versi\u00f3n 68."}], "id": "CVE-2019-11727", "lastModified": "2019-07-30T23:15:12.467", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-07-23T14:15:16.450", "references": [{"source": "security@mozilla.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html"}, {"source": "security@mozilla.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html"}, {"source": "security@mozilla.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html"}, {"source": "security@mozilla.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html"}, {"source": "security@mozilla.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html"}, {"source": "security@mozilla.org", "url": "https://access.redhat.com/errata/RHSA-2019:1951"}, {"source": "security@mozilla.org", "tags": ["Issue Tracking", "Permissions Required", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1552208"}, {"source": "security@mozilla.org", "url": "https://security.gentoo.org/glsa/201908-12"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-21/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-295"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Hubert Kario as the original reporter.", "affected_release": [{"advisory": "RHSA-2020:4076", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "nspr-0:4.25.0-2.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-09-29T00:00:00Z"}, {"advisory": "RHSA-2020:4076", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "nss-0:3.53.1-3.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-09-29T00:00:00Z"}, {"advisory": "RHSA-2020:4076", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "nss-softokn-0:3.53.1-6.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-09-29T00:00:00Z"}, {"advisory": "RHSA-2020:4076", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "nss-util-0:3.53.1-1.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-09-29T00:00:00Z"}, {"advisory": "RHSA-2019:1951", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "nspr-0:4.21.0-2.el8_0", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2019-07-30T00:00:00Z"}, {"advisory": "RHSA-2019:1951", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "nss-0:3.44.0-7.el8_0", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2019-07-30T00:00:00Z"}, {"advisory": "RHSA-2021:0949", "cpe": "cpe:/a:redhat:openshift_do:1.0::el7", "package": "openshiftdo/odo-init-image-rhel7:1.1.3-2", "product_name": "Red Hat OpenShift Do", "release_date": "2021-03-22T00:00:00Z"}], "bugzilla": {"description": "nss: PKCS#1 v1.5 signatures can be used for TLS 1.3", "id": "1730988", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1730988"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.4", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N", "status": "verified"}, "cwe": "CWE-327", "details": ["A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68."], "name": "CVE-2019-11727", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "nss", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "nss", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2019-07-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-11727\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-11727\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2019-21/#CVE-2019-11727"], "threat_severity": "Low", "upstream_fix": "nss 3.44.1"}