CVE-2019-19246

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:oniguruma_project:oniguruma:*:*:*:*:*:*:*:*", "matchCriteriaId": "68772ACF-793E-49F4-9352-53E54FA7540A", "versionEndIncluding": "6.9.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", "matchCriteriaId": "DE288A62-8732-45BB-BF66-A8B40132153F", "versionEndExcluding": "7.3.10", "versionStartIncluding": "7.3.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "matchCriteriaId": "80F0FA5D-8D3B-4C0E-81E2-87998286AF33", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*", "matchCriteriaId": "815D70A8-47D3-459C-A32C-9FEACA0659D1", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Oniguruma through 6.9.3, as used in PHP 7.3.x and other products, has a heap-based buffer over-read in str_lower_case_match in regexec.c."}, {"lang": "es", "value": "Oniguruma versiones hasta 6.9.3, como es usado en PHP versi\u00f3n 7.3.x y otros productos, presenta una lectura excesiva de b\u00fafer en la regi\u00f3n heap de la memoria en la funci\u00f3n str_lower_case_match en el archivo regexec.c."}], "id": "CVE-2019-19246", "lastModified": "2026-06-17T02:26:21.687", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-11-25T17:15:11.887", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://bugs.php.net/bug.php?id=78559"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/kkos/oniguruma/commit/d3e402928b6eb3327f8f7d59a9edfa622fec557b"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2019/12/msg00002.html"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NO267PLHGYZSWX3XTRPKYBKD4J3YOU5V/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/4460-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://bugs.php.net/bug.php?id=78559"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/kkos/oniguruma/commit/d3e402928b6eb3327f8f7d59a9edfa622fec557b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2019/12/msg00002.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NO267PLHGYZSWX3XTRPKYBKD4J3YOU5V/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/4460-1/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2020:3662", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "php:7.3-8020020200715124551.ceb1cf90", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-09-08T00:00:00Z"}, {"advisory": "RHSA-2020:5275", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-php73-php-0:7.3.20-1.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2020-12-01T00:00:00Z"}, {"advisory": "RHSA-2020:5275", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-php73-php-0:7.3.20-1.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS", "release_date": "2020-12-01T00:00:00Z"}, {"advisory": "RHSA-2020:5275", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-php73-php-0:7.3.20-1.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS", "release_date": "2020-12-01T00:00:00Z"}], "bugzilla": {"description": "oniguruma: Heap-based buffer overflow in str_lower_case_match in regexec.c", "id": "1777537", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1777537"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H", "status": "verified"}, "cwe": "CWE-125", "details": ["Oniguruma through 6.9.3, as used in PHP 7.3.x and other products, has a heap-based buffer over-read in str_lower_case_match in regexec.c."], "name": "CVE-2019-19246", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "oniguruma", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "php", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "php", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "oniguruma", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "php:7.2/php", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "ruby:2.5/ruby", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "ruby:2.6/ruby", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Will not fix", "package_name": "oniguruma", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:3", "fix_state": "Affected", "package_name": "rh-php72-php", "product_name": "Red Hat Software Collections"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:3", "fix_state": "Affected", "package_name": "rh-ruby24-ruby", "product_name": "Red Hat Software Collections"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:3", "fix_state": "Affected", "package_name": "rh-ruby25-ruby", "product_name": "Red Hat Software Collections"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:3", "fix_state": "Affected", "package_name": "rh-ruby26-ruby", "product_name": "Red Hat Software Collections"}], "public_date": "2019-08-13T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-19246\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-19246"], "statement": "This vulnerability is rated as moderate because a heap-based buffer overflow in Oniguruma\u2019s str_lower_case_match within regexec.c could lead to application crashes or potential code execution. However, successful exploitation depends on specific conditions, such as how the application processes untrusted regex inputs, making the overall impact limited in most cases.", "threat_severity": "Moderate"}

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