{"id":"UBUNTU-CVE-2016-3948","details":"Squid 3.x before 3.5.16 and 4.x before 4.0.8 improperly perform bounds checking, which allows remote attackers to cause a denial of service via a crafted HTTP response, related to Vary headers.","modified":"2026-02-04T02:18:55.952632Z","published":"2016-04-07T00:00:00Z","related":["USN-3557-1"],"upstream":["CVE-2016-3948"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-3948"},{"type":"REPORT","url":"http://www.squid-cache.org/Advisories/SQUID-2016_4.txt"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3557-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-3948"}],"affected":[{"package":{"name":"squid3","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/squid3@3.5.12-1ubuntu7.5?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.12-1ubuntu7.5"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"squid","binary_version":"3.5.12-1ubuntu7.5"},{"binary_name":"squid-cgi","binary_version":"3.5.12-1ubuntu7.5"},{"binary_name":"squid-common","binary_version":"3.5.12-1ubuntu7.5"},{"binary_name":"squid-purge","binary_version":"3.5.12-1ubuntu7.5"},{"binary_name":"squid3","binary_version":"3.5.12-1ubuntu7.5"},{"binary_name":"squidclient","binary_version":"3.5.12-1ubuntu7.5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-3948.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}