{"id":"USN-5771-1","summary":"squid3 regression","details":"USN-3557-1 fixed vulnerabilities in Squid. This update introduced a regression\nwhich could cause the cache log to be filled with many Vary loop messages. This\nupdate fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\nMathias Fischer discovered that Squid incorrectly handled certain long\nstrings in headers. A malicious remote server could possibly cause Squid to\ncrash, resulting in a denial of service. This issue was only addressed in\nUbuntu 16.04 LTS. (CVE-2016-2569)\n\nWilliam Lima discovered that Squid incorrectly handled XML parsing when\nprocessing Edge Side Includes (ESI). A malicious remote server could\npossibly cause Squid to crash, resulting in a denial of service. This issue\nwas only addressed in Ubuntu 16.04 LTS. (CVE-2016-2570)\n\nAlex Rousskov discovered that Squid incorrectly handled response-parsing\nfailures. A malicious remote server could possibly cause Squid to crash,\nresulting in a denial of service. This issue only applied to Ubuntu 16.04\nLTS. (CVE-2016-2571)\n\nSantiago Ruano Rincón discovered that Squid incorrectly handled certain\nVary headers. A remote attacker could possibly use this issue to cause\nSquid to crash, resulting in a denial of service. This issue was only\naddressed in Ubuntu 16.04 LTS. (CVE-2016-3948)\n\nLouis Dion-Marcil discovered that Squid incorrectly handled certain Edge\nSide Includes (ESI) responses. A malicious remote server could possibly\ncause Squid to crash, resulting in a denial of service. (CVE-2018-1000024)\n\nLouis Dion-Marcil discovered that Squid incorrectly handled certain Edge\nSide Includes (ESI) responses. A malicious remote server could possibly\ncause Squid to crash, resulting in a denial of service. (CVE-2018-1000027)\n","modified":"2026-02-10T04:42:52Z","published":"2022-12-12T00:46:49Z","references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5771-1"},{"type":"REPORT","url":"https://launchpad.net/bugs/1999346"}],"affected":[{"package":{"name":"squid3","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/squid3@3.5.12-1ubuntu7.16+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.12-1ubuntu7.16+esm1"}]}],"versions":["3.3.8-1ubuntu16","3.3.8-1ubuntu17","3.5.12-1ubuntu6","3.5.12-1ubuntu7","3.5.12-1ubuntu7.1","3.5.12-1ubuntu7.2","3.5.12-1ubuntu7.3","3.5.12-1ubuntu7.4","3.5.12-1ubuntu7.5","3.5.12-1ubuntu7.6","3.5.12-1ubuntu7.7","3.5.12-1ubuntu7.8","3.5.12-1ubuntu7.9","3.5.12-1ubuntu7.10","3.5.12-1ubuntu7.11","3.5.12-1ubuntu7.12","3.5.12-1ubuntu7.13","3.5.12-1ubuntu7.14","3.5.12-1ubuntu7.15","3.5.12-1ubuntu7.16"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"squid","binary_version":"3.5.12-1ubuntu7.16+esm1"},{"binary_name":"squid-cgi","binary_version":"3.5.12-1ubuntu7.16+esm1"},{"binary_name":"squid-common","binary_version":"3.5.12-1ubuntu7.16+esm1"},{"binary_name":"squid-purge","binary_version":"3.5.12-1ubuntu7.16+esm1"},{"binary_name":"squid3","binary_version":"3.5.12-1ubuntu7.16+esm1"},{"binary_name":"squidclient","binary_version":"3.5.12-1ubuntu7.16+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5771-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[]}}}],"schema_version":"1.7.3"}