{"schemaVersion":3,"id":"USN-2995-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"squid3 vulnerabilities\n\nYuriy M. Kaminskiy discovered that the Squid pinger utility incorrectly\nhandled certain ICMPv6 packets. A remote attacker could use this issue to\ncause Squid to crash, resulting in a denial of service, or possibly cause\nSquid to leak information into log files. (CVE-2016-3947)\n\nYuriy M. Kaminskiy discovered that the Squid cachemgr.cgi tool incorrectly\nhandled certain crafted data. A remote attacker could use this issue to\ncause Squid to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2016-4051)\n\nIt was discovered that Squid incorrectly handled certain Edge Side Includes\n(ESI) responses. A remote attacker could possibly use this issue to cause\nSquid to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2016-4052, CVE-2016-4053, CVE-2016-4054)\n\nJianjun Chen discovered that Squid did not correctly ignore the Host header\nwhen absolute-URI is provided. A remote attacker could possibly use this\nissue to conduct cache-poisoning attacks. This issue only affected Ubuntu\n14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04 LTS. (CVE-2016-4553)\n\nJianjun Chen discovered that Squid incorrectly handled certain HTTP Host\nheaders. A remote attacker could possibly use this issue to conduct\ncache-poisoning attacks. (CVE-2016-4554)\n\nIt was discovered that Squid incorrectly handled certain Edge Side Includes\n(ESI) responses. A remote attacker could possibly use this issue to cause\nSquid to crash, resulting in a denial of service. (CVE-2016-4555,\nCVE-2016-4556)","dates":{"published":"2016-06-09T17:10:37.000Z","modified":"2026-02-10T04:41:00.000Z","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":"squid3","name":"squid3","label":"squid3","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/squid3","purlType":"deb","versions":[{"text":"< 3.3.8-1ubuntu6.8","noFixRecorded":false,"fixedIn":null},{"text":"< 3.5.12-1ubuntu7.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.3.8-1ubuntu6.8 | < 3.5.12-1ubuntu7.2","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-2995-1","label":"ubuntu.com/security/notices/USN-2995-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2016-3947","label":"ubuntu.com/security/CVE-2016-3947","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-4051","label":"ubuntu.com/security/CVE-2016-4051","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-4052","label":"ubuntu.com/security/CVE-2016-4052","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-4053","label":"ubuntu.com/security/CVE-2016-4053","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-4054","label":"ubuntu.com/security/CVE-2016-4054","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-4553","label":"ubuntu.com/security/CVE-2016-4553","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-4554","label":"ubuntu.com/security/CVE-2016-4554","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-4555","label":"ubuntu.com/security/CVE-2016-4555","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-4556","label":"ubuntu.com/security/CVE-2016-4556","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2016-3947","CVE-2016-4051","CVE-2016-4052","CVE-2016-4053","CVE-2016-4054","CVE-2016-4553","CVE-2016-4554","CVE-2016-4555","CVE-2016-4556"],"downstream":[],"duplicates":[],"related":["CVE-2016-3947","CVE-2016-4051","CVE-2016-4052","CVE-2016-4053","CVE-2016-4054","CVE-2016-4553","CVE-2016-4554","CVE-2016-4555","CVE-2016-4556"]},"timeline":[{"kind":"published","date":"2016-06-09T17:10:37.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-10T04:41:00.000Z","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":"2026-10-19T10:16:55.418Z","stale":false,"partial":false}}