{"id":"UBUNTU-CVE-2024-45506","details":"HAProxy 2.9.x before 2.9.10, 3.0.x before 3.0.4, and 3.1.x through 3.1-dev6 allows a remote denial of service for HTTP/2 zero-copy forwarding (h2_send loop) under a certain set of conditions, as exploited in the wild in 2024.","modified":"2025-07-16T07:47:40.305624Z","published":"2024-09-04T15:15:00Z","withdrawn":"2025-07-18T16:59:55Z","upstream":["CVE-2024-45506"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-45506"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-45506"},{"type":"REPORT","url":"https://www.haproxy.org/download/3.1/src/CHANGELOG"},{"type":"REPORT","url":"https://www.mail-archive.com/haproxy%40formilux.org/msg45281.html"},{"type":"REPORT","url":"https://www.mail-archive.com/haproxy%40formilux.org/msg45280.html"}],"affected":[{"package":{"name":"haproxy","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/haproxy@2.0.33-0ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.33-0ubuntu0.1"}]}],"versions":["2.0.5-1","2.0.8-1","2.0.9-1","2.0.10-1","2.0.10-1ubuntu1","2.0.11-1ubuntu1","2.0.12-1ubuntu2","2.0.13-1ubuntu2","2.0.13-2","2.0.13-2ubuntu0.1","2.0.13-2ubuntu0.2","2.0.13-2ubuntu0.3","2.0.13-2ubuntu0.5","2.0.29-0ubuntu1","2.0.29-0ubuntu1.1","2.0.29-0ubuntu1.3","2.0.31-0ubuntu0.1","2.0.31-0ubuntu0.2","2.0.31-0ubuntu0.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"haproxy","binary_version":"2.0.33-0ubuntu0.1"},{"binary_name":"haproxy-dbgsym","binary_version":"2.0.33-0ubuntu0.1"},{"binary_name":"haproxy-doc","binary_version":"2.0.33-0ubuntu0.1"},{"binary_name":"vim-haproxy","binary_version":"2.0.33-0ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-45506.json"}},{"package":{"name":"haproxy","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/haproxy@2.4.24-0ubuntu0.22.04.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.24-0ubuntu0.22.04.1"}]}],"versions":["2.2.9-2ubuntu2","2.4.8-1","2.4.8-2ubuntu3","2.4.11-1ubuntu1","2.4.12-1ubuntu1","2.4.12-1ubuntu2","2.4.13-1ubuntu1","2.4.14-1ubuntu1","2.4.18-0ubuntu1","2.4.18-0ubuntu1.1","2.4.18-0ubuntu1.2","2.4.18-0ubuntu1.3","2.4.22-0ubuntu0.22.04.1","2.4.22-0ubuntu0.22.04.2","2.4.22-0ubuntu0.22.04.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"haproxy","binary_version":"2.4.24-0ubuntu0.22.04.1"},{"binary_name":"haproxy-dbgsym","binary_version":"2.4.24-0ubuntu0.22.04.1"},{"binary_version":"2.4.24-0ubuntu0.22.04.1","binary_name":"haproxy-doc"},{"binary_name":"vim-haproxy","binary_version":"2.4.24-0ubuntu0.22.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-45506.json"}},{"package":{"name":"haproxy","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/haproxy@2.8.5-1ubuntu3?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.5-1ubuntu3"}]}],"versions":["2.6.15-1ubuntu2","2.8.5-1ubuntu1","2.8.5-1ubuntu2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"haproxy","binary_version":"2.8.5-1ubuntu3"},{"binary_name":"haproxy-dbgsym","binary_version":"2.8.5-1ubuntu3"},{"binary_name":"haproxy-doc","binary_version":"2.8.5-1ubuntu3"},{"binary_name":"vim-haproxy","binary_version":"2.8.5-1ubuntu3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-45506.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:N/I:N/A:H"},{"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"}]}