{"id":"UBUNTU-CVE-2020-8450","details":"An issue was discovered in Squid before 4.10. Due to incorrect buffer management, a remote client can cause a buffer overflow in a Squid instance acting as a reverse proxy.","modified":"2026-02-04T02:57:41.900015Z","published":"2020-02-04T20:15:00Z","related":["USN-4289-1"],"upstream":["CVE-2020-8450"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-8450"},{"type":"REPORT","url":"http://www.squid-cache.org/Advisories/SQUID-2020_1.txt"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4289-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-8450"}],"affected":[{"package":{"name":"squid3","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/squid3@3.5.12-1ubuntu7.10?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.12-1ubuntu7.10"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_name":"squid","binary_version":"3.5.12-1ubuntu7.10"},{"binary_name":"squid-cgi","binary_version":"3.5.12-1ubuntu7.10"},{"binary_name":"squid-common","binary_version":"3.5.12-1ubuntu7.10"},{"binary_name":"squid-purge","binary_version":"3.5.12-1ubuntu7.10"},{"binary_name":"squid3","binary_version":"3.5.12-1ubuntu7.10"},{"binary_name":"squidclient","binary_version":"3.5.12-1ubuntu7.10"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8450.json"}},{"package":{"name":"squid3","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/squid3@3.5.27-1ubuntu1.5?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.27-1ubuntu1.5"}]}],"versions":["3.5.23-5ubuntu1","3.5.23-5ubuntu2","3.5.27-1ubuntu1","3.5.27-1ubuntu1.1","3.5.27-1ubuntu1.2","3.5.27-1ubuntu1.3","3.5.27-1ubuntu1.4"],"ecosystem_specific":{"binaries":[{"binary_name":"squid","binary_version":"3.5.27-1ubuntu1.5"},{"binary_name":"squid-cgi","binary_version":"3.5.27-1ubuntu1.5"},{"binary_name":"squid-common","binary_version":"3.5.27-1ubuntu1.5"},{"binary_name":"squid-purge","binary_version":"3.5.27-1ubuntu1.5"},{"binary_name":"squid3","binary_version":"3.5.27-1ubuntu1.5"},{"binary_name":"squidclient","binary_version":"3.5.27-1ubuntu1.5"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8450.json"}},{"package":{"name":"squid","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/squid@4.9-2ubuntu4?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9-2ubuntu4"}]}],"versions":["4.8-1ubuntu2","4.8-1ubuntu3","4.9-2ubuntu1","4.9-2ubuntu2","4.9-2ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_name":"squid","binary_version":"4.9-2ubuntu4"},{"binary_name":"squid-cgi","binary_version":"4.9-2ubuntu4"},{"binary_name":"squid-common","binary_version":"4.9-2ubuntu4"},{"binary_name":"squid-purge","binary_version":"4.9-2ubuntu4"},{"binary_name":"squid3","binary_version":"4.9-2ubuntu4"},{"binary_name":"squidclient","binary_version":"4.9-2ubuntu4"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8450.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"},{"type":"Ubuntu","score":"medium"}]}