{"schemaVersion":3,"id":"USN-3276-2","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"shadow regression\n\nUSN-3276-1 intended to fix a vulnerability in su. The solution introduced\na regression in su signal handling. This update modifies the security fix.\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n Sebastian Krahmer discovered integer overflows in shadow utilities.\n A local attacker could possibly cause them to crash or potentially\n gain privileges via crafted input. (CVE-2016-6252)\n\n Tobias Stöckmann discovered a race condition in su. A local\n attacker could cause su to send SIGKILL to other processes with\n root privileges. (CVE-2017-2616)","dates":{"published":"2017-05-17T01:55:06.000Z","modified":"2026-02-10T04:41:07.000Z","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":"shadow","name":"shadow","label":"shadow","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/shadow","purlType":"deb","versions":[{"text":"< 1:4.1.5.1-1ubuntu9.5","noFixRecorded":false,"fixedIn":null},{"text":"< 1:4.2-3.1ubuntu5.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:4.1.5.1-1ubuntu9.5 | < 1:4.2-3.1ubuntu5.3","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-3276-2","label":"ubuntu.com/security/notices/USN-3276-2","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://launchpad.net/bugs/1690820","label":"launchpad.net/bugs/1690820","hostname":"launchpad.net","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2017-05-17T01:55:06.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-10T04:41:07.000Z","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":"2026-10-20T05:48:14.256Z","stale":false,"partial":false}}