{"schemaVersion":3,"id":"USN-5800-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"heimdal vulnerabilities\n\nIt was discovered that Heimdal incorrectly handled certain SPNEGO tokens. A\nremote attacker could possibly use this issue to cause a denial of service.\n(CVE-2021-44758)\n\nEvgeny Legerov discovered that Heimdal incorrectly handled memory when\nperforming certain DES decryption operations. A remote attacker could use\nthis issue to cause a denial of service, or possibly execute arbitrary\ncode. (CVE-2022-3437)\n\nGreg Hudson discovered that Kerberos PAC implementation used in Heimdal\nincorrectly handled certain parsing operations. A remote attacker could use\nthis issue to cause a denial of service, or possibly execute arbitrary\ncode. (CVE-2022-42898)\n\nIt was discovered that Heimdal's KDC did not properly handle certain error\nconditions. A remote attacker could use this issue to cause a denial of\nservice, or possibly execute arbitrary code. (CVE-2022-44640)","dates":{"published":"2023-01-12T17:12:53.000Z","modified":"2026-06-29T13:50:45.183Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"heimdal","name":"heimdal","label":"heimdal","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/heimdal","purlType":"deb","versions":[{"text":"< 1.6~git20131207+dfsg-1ubuntu1.2+esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 7.5.0+dfsg-1ubuntu0.3","noFixRecorded":false,"fixedIn":null},{"text":"< 7.7.0+dfsg-1ubuntu1.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.6~git20131207+dfsg-1ubuntu1.2+esm3 | < 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 | < 7.5.0+dfsg-1ubuntu0.3 | < 7.7.0+dfsg-1ubuntu1.3","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-5800-1","label":"ubuntu.com/security/notices/USN-5800-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-44758","label":"ubuntu.com/security/CVE-2021-44758","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-3437","label":"ubuntu.com/security/CVE-2022-3437","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-42898","label":"ubuntu.com/security/CVE-2022-42898","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-44640","label":"ubuntu.com/security/CVE-2022-44640","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2021-44758","CVE-2022-3437","CVE-2022-42898","CVE-2022-44640"],"downstream":[],"duplicates":[],"related":["CVE-2021-44758","CVE-2022-3437","CVE-2022-42898","CVE-2022-44640"]},"timeline":[{"kind":"published","date":"2023-01-12T17:12:53.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-29T13:50:45.183Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T05:37:49.422Z","stale":false,"partial":false}}