{"id":"UBUNTU-CVE-2016-4053","details":"Squid 3.x before 3.5.17 and 4.x before 4.0.9 allow remote attackers to obtain sensitive stack layout information via crafted Edge Side Includes (ESI) responses, related to incorrect use of assert and compiler optimization.","modified":"2026-01-30T01:23:30.834751Z","published":"2016-04-25T00:00:00Z","related":["USN-2995-1"],"upstream":["CVE-2016-4053"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-4053"},{"type":"REPORT","url":"https://marc.info/?l=oss-security&m=146116724827962&w=2"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2995-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-4053"}],"affected":[{"package":{"name":"squid3","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/squid3@3.3.8-1ubuntu6.8?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.8-1ubuntu6.8"}]}],"versions":["3.3.8-1ubuntu3","3.3.8-1ubuntu4","3.3.8-1ubuntu5","3.3.8-1ubuntu6","3.3.8-1ubuntu6.1","3.3.8-1ubuntu6.2","3.3.8-1ubuntu6.3","3.3.8-1ubuntu6.4","3.3.8-1ubuntu6.6"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.3.8-1ubuntu6.8","binary_name":"squid"},{"binary_version":"3.3.8-1ubuntu6.8","binary_name":"squid-cgi"},{"binary_version":"3.3.8-1ubuntu6.8","binary_name":"squid-purge"},{"binary_version":"3.3.8-1ubuntu6.8","binary_name":"squid3"},{"binary_version":"3.3.8-1ubuntu6.8","binary_name":"squid3-common"},{"binary_version":"3.3.8-1ubuntu6.8","binary_name":"squidclient"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4053.json"}},{"package":{"name":"squid3","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/squid3@3.5.12-1ubuntu7.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.12-1ubuntu7.2"}]}],"versions":["3.3.8-1ubuntu16","3.3.8-1ubuntu17","3.5.12-1ubuntu6","3.5.12-1ubuntu7","3.5.12-1ubuntu7.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.5.12-1ubuntu7.2","binary_name":"squid"},{"binary_version":"3.5.12-1ubuntu7.2","binary_name":"squid-cgi"},{"binary_version":"3.5.12-1ubuntu7.2","binary_name":"squid-common"},{"binary_version":"3.5.12-1ubuntu7.2","binary_name":"squid-purge"},{"binary_version":"3.5.12-1ubuntu7.2","binary_name":"squid3"},{"binary_version":"3.5.12-1ubuntu7.2","binary_name":"squidclient"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4053.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"type":"Ubuntu","score":"low"}]}