{"id":"USN-5063-1","summary":"haproxy vulnerabilities","details":"Ori Hollander discovered that HAProxy incorrectly handled HTTP header name\nlength encoding. A remote attacker could possibly use this issue to inject\na duplicate content-length header and perform request smuggling attacks.\n","modified":"2026-02-10T04:42:18Z","published":"2021-09-08T11:06:21Z","related":["UBUNTU-CVE-2021-40346"],"upstream":["CVE-2021-40346","UBUNTU-CVE-2021-40346"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5063-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-40346"}],"affected":[{"package":{"name":"haproxy","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/haproxy@2.0.13-2ubuntu0.3?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.13-2ubuntu0.3"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"haproxy","binary_version":"2.0.13-2ubuntu0.3"},{"binary_name":"vim-haproxy","binary_version":"2.0.13-2ubuntu0.3"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2021-40346","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5063-1.json"}}],"schema_version":"1.7.3"}