Show plain JSON{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/heimdal/heimdal/issues/353", "name": "https://github.com/heimdal/heimdal/issues/353", "tags": ["Patch", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://github.com/heimdal/heimdal/commit/1a6a6e462dc2ac6111f9e02c6852ddec4849b887", "name": "https://github.com/heimdal/heimdal/commit/1a6a6e462dc2ac6111f9e02c6852ddec4849b887", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878144", "name": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878144", "tags": ["Issue Tracking", "Mailing List", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "http://www.h5l.org/pipermail/heimdal-discuss/2017-August/000259.html", "name": "http://www.h5l.org/pipermail/heimdal-discuss/2017-August/000259.html", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://www.debian.org/security/2017/dsa-4055", "name": "DSA-4055", "tags": ["Third Party Advisory"], "refsource": "DEBIAN"}, {"url": "http://www.h5l.org/pipermail/heimdal-announce/2017-December/000008.html", "name": "http://www.h5l.org/pipermail/heimdal-announce/2017-December/000008.html", "tags": [], "refsource": "CONFIRM"}, {"url": "http://h5l.org/advisories.html?show=2017-12-08", "name": "http://h5l.org/advisories.html?show=2017-12-08", "tags": [], "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "In Heimdal through 7.4, remote unauthenticated attackers are able to crash the KDC by sending a crafted UDP packet containing empty data fields for client name or realm. The parser would unconditionally dereference NULL pointers in that case, leading to a segmentation fault. This is related to the _kdc_as_rep function in kdc/kerberos5.c and the der_length_visible_string function in lib/asn1/der_length.c."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-476"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2017-17439", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"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"}, "severity": "MEDIUM", "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/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}}, "publishedDate": "2017-12-06T15:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "7.4.0"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2017-12-30T02:29Z"} 
