CVE-2019-20398

{"id": "CVE-2019-20398", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2020-01-22T22:15:10.627", "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1793935", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/CESNET/libyang/commit/7852b272ef77f8098c35deea6c6f09cb78176f08", "tags": ["Patch"], "source": "cve@mitre.org"}, {"url": "https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/CESNET/libyang/issues/773", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html", "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "A NULL pointer dereference is present in libyang before v1.0-r3 in the function lys_extension_instances_free() due to a copy of unresolved extensions in lys_restr_dup(). Applications that use libyang to parse untrusted input yang files may crash."}, {"lang": "es", "value": "Una desreferencia del puntero NULL est\u00e1 presente en libyang versiones anteriores a v1.0-r3, en la funci\u00f3n lys_extension_instances_free() debido a una copia de extensiones no resuelta en la funci\u00f3n lys_restr_dup(). Las aplicaciones que usan libyang para analizar archivos de entrada yang no confiables pueden bloquearse."}], "lastModified": "2023-09-19T22:15:10.780", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cesnet:libyang:0.11:r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "65E91322-5F67-43C2-8112-5ECAEC2A3C12"}, {"criteria": "cpe:2.3:a:cesnet:libyang:0.11:r2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "80A88DE4-93F8-40C3-AA52-A5F353F028AA"}, {"criteria": "cpe:2.3:a:cesnet:libyang:0.12:r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "05C120CA-50EF-4B6D-92C9-ED736219DB07"}, {"criteria": "cpe:2.3:a:cesnet:libyang:0.12:r2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "99D1FA55-3F56-4E09-B41E-B05C199B96B8"}, {"criteria": "cpe:2.3:a:cesnet:libyang:0.13:r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "35D48EC4-58D2-49C6-8049-920787733587"}, {"criteria": "cpe:2.3:a:cesnet:libyang:0.13:r2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B57F3953-49D6-413C-A4AE-03125935FC77"}, {"criteria": "cpe:2.3:a:cesnet:libyang:0.14:r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DD62411F-A524-4E80-B540-780EA39CB6A4"}, {"criteria": "cpe:2.3:a:cesnet:libyang:0.15:r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FEF091B1-978A-4881-B1FC-6848CD1A7BBF"}, {"criteria": "cpe:2.3:a:cesnet:libyang:0.16:r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0C50D690-9A4D-4B78-BF4E-A4D9B4074216"}, {"criteria": "cpe:2.3:a:cesnet:libyang:0.16:r2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "124A5D30-7451-4516-9AA2-963AE62DD679"}, {"criteria": "cpe:2.3:a:cesnet:libyang:0.16:r3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C260D13B-82E9-4596-9116-61073B42D661"}, {"criteria": "cpe:2.3:a:cesnet:libyang:1.0:r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5F8D5FC0-959E-4014-9CB7-91378CC8B2BA"}, {"criteria": "cpe:2.3:a:cesnet:libyang:1.0:r2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DCBDA519-805B-4193-8092-75E2748A7BC3"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}