{"url":"http://public2.vulnerablecode.io/api/packages/455576?format=json","purl":"pkg:apk/alpine/heimdal@7.4.0-r2?arch=x86&distroversion=v3.8&reponame=main","type":"apk","namespace":"alpine","name":"heimdal","version":"7.4.0-r2","qualifiers":{"arch":"x86","distroversion":"v3.8","reponame":"main"},"subpath":"","is_vulnerable":false,"next_non_vulnerable_version":"7.5.0-r2","latest_non_vulnerable_version":"7.5.0-r3","affected_by_vulnerabilities":[],"fixing_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/72440?format=json","vulnerability_id":"VCID-gf6u-8jfp-7bdc","summary":"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.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2017-17439","reference_id":"","reference_type":"","scores":[{"value":"0.03783","scoring_system":"epss","scoring_elements":"0.88272","published_at":"2026-06-04T12:55:00Z"},{"value":"0.03783","scoring_system":"epss","scoring_elements":"0.88291","published_at":"2026-06-05T12:55:00Z"},{"value":"0.03783","scoring_system":"epss","scoring_elements":"0.88293","published_at":"2026-06-08T12:55:00Z"},{"value":"0.03783","scoring_system":"epss","scoring_elements":"0.88292","published_at":"2026-06-07T12:55:00Z"},{"value":"0.03783","scoring_system":"epss","scoring_elements":"0.88309","published_at":"2026-06-09T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2017-17439"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17439","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17439"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878144","reference_id":"878144","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878144"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/455576?format=json","purl":"pkg:apk/alpine/heimdal@7.4.0-r2?arch=x86&distroversion=v3.8&reponame=main","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/heimdal@7.4.0-r2%3Farch=x86&distroversion=v3.8&reponame=main"}],"aliases":["CVE-2017-17439"],"risk_score":null,"exploitability":"0.5","weighted_severity":"0.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-gf6u-8jfp-7bdc"}],"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/heimdal@7.4.0-r2%3Farch=x86&distroversion=v3.8&reponame=main"}