{"schemaVersion":3,"id":"USN-6500-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"squid vulnerabilities\n\nJoshua Rogers discovered that Squid incorrectly handled validating certain\nSSL certificates. A remote attacker could possibly use this issue to cause\nSquid to crash, resulting in a denial of service. This issue only affected\nUbuntu 22.04 LTS, Ubuntu 23.04, and Ubuntu 23.10. (CVE-2023-46724)\n\nJoshua Rogers discovered that Squid incorrectly handled the Gopher\nprotocol. A remote attacker could possibly use this issue to cause Squid to\ncrash, resulting in a denial of service. Gopher support has been disabled\nin this update. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04\nLTS, and Ubuntu 23.04. (CVE-2023-46728)\n\nKeran Mu and Jianjun Chen discovered that Squid incorrectly handled the\nchunked decoder. A remote attacker could possibly use this issue to perform\nHTTP request smuggling attacks. (CVE-2023-46846)\n\nJoshua Rogers discovered that Squid incorrectly handled HTTP Digest\nAuthentication. A remote attacker could possibly use this issue to cause\nSquid to crash, resulting in a denial of service. (CVE-2023-46847)\n\nJoshua Rogers discovered that Squid incorrectly handled certain FTP urls.\nA remote attacker could possibly use this issue to cause Squid to crash,\nresulting in a denial of service. (CVE-2023-46848)","dates":{"published":"2023-11-21T15:42:49.000Z","modified":"2026-04-27T17:02:16.672Z","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":"squid","name":"squid","label":"squid","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/squid","purlType":"deb","versions":[{"text":"< 4.10-1ubuntu1.8","noFixRecorded":false,"fixedIn":null},{"text":"< 5.7-0ubuntu0.22.04.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.10-1ubuntu1.8 | < 5.7-0ubuntu0.22.04.2","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-6500-1","label":"ubuntu.com/security/notices/USN-6500-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-46724","label":"ubuntu.com/security/CVE-2023-46724","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-46728","label":"ubuntu.com/security/CVE-2023-46728","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-46846","label":"ubuntu.com/security/CVE-2023-46846","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-46847","label":"ubuntu.com/security/CVE-2023-46847","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-46848","label":"ubuntu.com/security/CVE-2023-46848","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2023-46724","CVE-2023-46728","CVE-2023-46846","CVE-2023-46847","CVE-2023-46848"],"downstream":[],"duplicates":[],"related":["CVE-2023-46724","CVE-2023-46728","CVE-2023-46846","CVE-2023-46847","CVE-2023-46848"]},"timeline":[{"kind":"published","date":"2023-11-21T15:42:49.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T17:02:16.672Z","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":"2026-10-21T01:12:29.235Z","stale":false,"partial":false}}