{"id":"USN-5474-2","summary":"varnish regression","details":"USN-5474-1 fixed vulnerabilities in Varnish Cache. Unfortunately the fix for\nCVE-2020-11653 was incomplete. This update fixes the problem.\n\nOriginal advisory details:\n\n It was discovered that Varnish Cache could have an assertion failure when a\n TLS termination proxy uses PROXY version 2. A remote attacker could possibly\n use this issue to restart the daemon and cause a performance loss.\n (CVE-2020-11653)\n","modified":"2026-04-22T10:43:24.167010Z","published":"2022-08-23T19:00:19Z","related":["UBUNTU-CVE-2020-11653"],"upstream":["CVE-2020-11653","UBUNTU-CVE-2020-11653"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5474-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-11653"}],"affected":[{"package":{"name":"varnish","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/varnish@6.2.1-2ubuntu0.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.1-2ubuntu0.2"}]}],"versions":["6.1.1-1","6.2.1-2","6.2.1-2ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libvarnishapi2","binary_version":"6.2.1-2ubuntu0.2"},{"binary_name":"varnish","binary_version":"6.2.1-2ubuntu0.2"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2020-11653","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5474-2.json"}}],"schema_version":"1.7.5"}