{"id":"UBUNTU-CVE-2024-30156","details":"Varnish Cache before 7.3.2 and 7.4.x before 7.4.3 (and before 6.0.13 LTS), and Varnish Enterprise 6 before 6.0.12r6, allows credits exhaustion for an HTTP/2 connection control flow window, aka a Broke Window Attack.","modified":"2026-04-22T17:50:47.579503Z","published":"2024-03-24T01:15:00Z","upstream":["CVE-2024-30156"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-30156"},{"type":"REPORT","url":"https://varnish-cache.org/security/VSV00014.html"},{"type":"REPORT","url":"https://varnish-cache.org/docs/7.5/whats-new/changes-7.5.html#security"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-30156"}],"affected":[{"package":{"name":"varnish","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/varnish@6.6.1-1ubuntu0.2?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.5.2-1","6.6.1-1","6.6.1-1ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_name":"libvarnishapi2","binary_version":"6.6.1-1ubuntu0.2"},{"binary_name":"varnish","binary_version":"6.6.1-1ubuntu0.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-30156.json"}},{"package":{"name":"varnish","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/varnish@7.1.1-1.1ubuntu1?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.1.1-1.1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libvarnishapi3","binary_version":"7.1.1-1.1ubuntu1"},{"binary_name":"varnish","binary_version":"7.1.1-1.1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-30156.json"}}],"schema_version":"1.7.5","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":"medium"}]}