{"id":"USN-4532-1","summary":"netty-3.9 vulnerabilities","details":"It was discovered that Netty incorrectly handled certain HTTP headers. \nBy sending an HTTP header with whitespace before the colon, a remote \nattacker could possibly use this issue to perform an HTTP request \nsmuggling attack. (CVE-2019-16869)\n\nIt was discovered that Netty incorrectly handled certain HTTP headers. \nBy sending an HTTP header that lacks a colon, a remote attacker could \npossibly use this issue to perform an HTTP request smuggling attack.\n(CVE-2019-20444)\n\nIt was discovered that Netty incorrectly handled certain HTTP headers. \nBy sending a Content-Length header accompanied by a second Content-Length \nheader, or by a Transfer-Encoding header, a remote attacker could possibly\nuse this issue to perform an HTTP request smuggling attack. \n(CVE-2019-20445)\n","modified":"2026-04-27T15:42:54.028317Z","published":"2020-09-22T16:15:05Z","related":["UBUNTU-CVE-2019-16869","UBUNTU-CVE-2019-20444","UBUNTU-CVE-2019-20445"],"upstream":["CVE-2019-16869","CVE-2019-20444","CVE-2019-20445","UBUNTU-CVE-2019-16869","UBUNTU-CVE-2019-20444","UBUNTU-CVE-2019-20445"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4532-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-16869"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-20444"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-20445"}],"affected":[{"package":{"name":"netty-3.9","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/netty-3.9@3.9.9.Final-1+deb9u1build0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.9.9.Final-1+deb9u1build0.18.04.1"}]}],"versions":["3.9.9.Final-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.9.9.Final-1+deb9u1build0.18.04.1","binary_name":"libnetty-3.9-java"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4532-1.json","cves_map":{"cves":[{"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"}],"id":"CVE-2019-16869"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2019-20444"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2019-20445"}],"ecosystem":"Ubuntu:18.04:LTS"}}}],"schema_version":"1.7.5"}