CVE-2021-42779

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-42779", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "dateUpdated": "2025-11-03T21:45:27.939Z", "dateReserved": "2021-10-21T00:00:00.000Z", "datePublished": "2022-04-18T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2023-06-21T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "A heap use after free issue was found in Opensc before version 0.22.0 in sc_file_valid."}], "affected": [{"vendor": "n/a", "product": "opensc", "versions": [{"version": "opensc 0.22.0", "status": "affected"}]}], "references": [{"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2016086"}, {"url": "https://github.com/OpenSC/OpenSC/commit/1db88374"}, {"name": "GLSA-202209-03", "tags": ["vendor-advisory"], "url": "https://security.gentoo.org/glsa/202209-03"}, {"name": "[debian-lts-announce] 20230621 [SECURITY] [DLA 3463-1] opensc security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00025.html"}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-416", "cweId": "CWE-416"}]}]}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843", "tags": ["x_transferred"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2016086", "tags": ["x_transferred"]}, {"url": "https://github.com/OpenSC/OpenSC/commit/1db88374", "tags": ["x_transferred"]}, {"name": "GLSA-202209-03", "tags": ["vendor-advisory", "x_transferred"], "url": "https://security.gentoo.org/glsa/202209-03"}, {"name": "[debian-lts-announce] 20230621 [SECURITY] [DLA 3463-1] opensc security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00025.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T21:45:27.939Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "opensc", "vendor": "n/a", "versions": [{"status": "affected", "version": "opensc 0.22.0"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:opensc_project:opensc:*:*:*:*:*:*:*:*", "matchCriteriaId": "B75A7FDD-CA09-46EF-8FAC-11732898B84B", "versionEndExcluding": "0.22.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A", "vulnerable": true}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A heap use after free issue was found in Opensc before version 0.22.0 in sc_file_valid."}, {"lang": "es", "value": "Se encontr\u00f3 un problema de uso de memoria previamente liberada de la pila en Opensc versiones anteriores a 0.22.0, en la funci\u00f3n sc_file_valid"}], "id": "CVE-2021-42779", "lastModified": "2026-06-17T04:10:07.977", "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": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "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:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-04-18T17:15:16.177", "references": [{"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Mailing List", "Patch", "Third Party Advisory"], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2016086"}, {"source": "secalert@redhat.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenSC/OpenSC/commit/1db88374"}, {"source": "secalert@redhat.com", "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00025.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202209-03"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Mailing List", "Patch", "Third Party Advisory"], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2016086"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenSC/OpenSC/commit/1db88374"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00025.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202209-03"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "opensc: Heap use after free in sc_file_valid", "id": "2016086", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2016086"}, "csaw": false, "cvss3": {"cvss3_base_score": "2.0", "cvss3_scoring_vector": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-416", "details": ["A heap use after free issue was found in Opensc before version 0.22.0 in sc_file_valid."], "name": "CVE-2021-42779", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "opensc", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "opensc", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "opensc", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2021-02-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-42779\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-42779"], "threat_severity": "Low"}

{}