{"id":"UBUNTU-CVE-2019-17567","details":"Apache HTTP Server versions 2.4.6 to 2.4.46 mod_proxy_wstunnel configured on an URL that is not necessarily Upgraded by the origin server was tunneling the whole connection regardless, thus allowing for subsequent requests on the same connection to pass through with no HTTP validation, authentication or authorization possibly configured.","modified":"2026-05-29T12:00:10.234014555Z","published":"2021-06-10T07:15:00Z","upstream":["CVE-2019-17567"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-17567"},{"type":"REPORT","url":"https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2019-17567"},{"type":"REPORT","url":"https://lists.apache.org/thread.html/r90f693a5c9fb75550ef1412436d5e682a5f845beb427fa6f23419a3c@%3Cannounce.httpd.apache.org%3E"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2021/06/10/2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-17567"}],"affected":[{"package":{"name":"apache2","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/apache2?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.6-2ubuntu2","2.4.6-2ubuntu3","2.4.6-2ubuntu4","2.4.7-1ubuntu1","2.4.7-1ubuntu2","2.4.7-1ubuntu3","2.4.7-1ubuntu4","2.4.7-1ubuntu4.1","2.4.7-1ubuntu4.4","2.4.7-1ubuntu4.5","2.4.7-1ubuntu4.6","2.4.7-1ubuntu4.7","2.4.7-1ubuntu4.8","2.4.7-1ubuntu4.9","2.4.7-1ubuntu4.10","2.4.7-1ubuntu4.11","2.4.7-1ubuntu4.13","2.4.7-1ubuntu4.15","2.4.7-1ubuntu4.16","2.4.7-1ubuntu4.17","2.4.7-1ubuntu4.18","2.4.7-1ubuntu4.19","2.4.7-1ubuntu4.20","2.4.7-1ubuntu4.21","2.4.7-1ubuntu4.22","2.4.7-1ubuntu4.22+esm1","2.4.7-1ubuntu4.22+esm2","2.4.7-1ubuntu4.22+esm3","2.4.7-1ubuntu4.22+esm4","2.4.7-1ubuntu4.22+esm5","2.4.7-1ubuntu4.22+esm6","2.4.7-1ubuntu4.22+esm8","2.4.7-1ubuntu4.22+esm9","2.4.7-1ubuntu4.22+esm10","2.4.7-1ubuntu4.22+esm12"],"ecosystem_specific":{"binaries":[{"binary_version":"2.4.7-1ubuntu4.22+esm12","binary_name":"apache2"},{"binary_version":"2.4.7-1ubuntu4.22+esm12","binary_name":"apache2-bin"},{"binary_version":"2.4.7-1ubuntu4.22+esm12","binary_name":"apache2-data"},{"binary_version":"2.4.7-1ubuntu4.22+esm12","binary_name":"apache2-mpm-event"},{"binary_version":"2.4.7-1ubuntu4.22+esm12","binary_name":"apache2-mpm-itk"},{"binary_version":"2.4.7-1ubuntu4.22+esm12","binary_name":"apache2-mpm-prefork"},{"binary_version":"2.4.7-1ubuntu4.22+esm12","binary_name":"apache2-mpm-worker"},{"binary_version":"2.4.7-1ubuntu4.22+esm12","binary_name":"apache2-suexec"},{"binary_version":"2.4.7-1ubuntu4.22+esm12","binary_name":"apache2-suexec-custom"},{"binary_version":"2.4.7-1ubuntu4.22+esm12","binary_name":"apache2-suexec-pristine"},{"binary_version":"2.4.7-1ubuntu4.22+esm12","binary_name":"apache2-utils"},{"binary_version":"2.4.7-1ubuntu4.22+esm12","binary_name":"apache2.2-bin"},{"binary_version":"1:2.4.7-1ubuntu4.22+esm12","binary_name":"libapache2-mod-macro"},{"binary_version":"1:2.4.7-1ubuntu4.22+esm12","binary_name":"libapache2-mod-proxy-html"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-17567.json"}},{"package":{"name":"apache2","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/apache2?arch=source&distro=esm-infra-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.12-2ubuntu2","2.4.17-1ubuntu1","2.4.17-2ubuntu1","2.4.17-3ubuntu1","2.4.18-1ubuntu1","2.4.18-2ubuntu1","2.4.18-2ubuntu2","2.4.18-2ubuntu3","2.4.18-2ubuntu3.1","2.4.18-2ubuntu3.2","2.4.18-2ubuntu3.3","2.4.18-2ubuntu3.4","2.4.18-2ubuntu3.5","2.4.18-2ubuntu3.7","2.4.18-2ubuntu3.8","2.4.18-2ubuntu3.9","2.4.18-2ubuntu3.10","2.4.18-2ubuntu3.12","2.4.18-2ubuntu3.13","2.4.18-2ubuntu3.14","2.4.18-2ubuntu3.15","2.4.18-2ubuntu3.17","2.4.18-2ubuntu3.17+esm1","2.4.18-2ubuntu3.17+esm2","2.4.18-2ubuntu3.17+esm3","2.4.18-2ubuntu3.17+esm4","2.4.18-2ubuntu3.17+esm5","2.4.18-2ubuntu3.17+esm6","2.4.18-2ubuntu3.17+esm7","2.4.18-2ubuntu3.17+esm8","2.4.18-2ubuntu3.17+esm9","2.4.18-2ubuntu3.17+esm10","2.4.18-2ubuntu3.17+esm11","2.4.18-2ubuntu3.17+esm12","2.4.18-2ubuntu3.17+esm13","2.4.18-2ubuntu3.17+esm14","2.4.18-2ubuntu3.17+esm16","2.4.18-2ubuntu3.17+esm17"],"ecosystem_specific":{"binaries":[{"binary_version":"2.4.18-2ubuntu3.17+esm17","binary_name":"apache2"},{"binary_version":"2.4.18-2ubuntu3.17+esm17","binary_name":"apache2-bin"},{"binary_version":"2.4.18-2ubuntu3.17+esm17","binary_name":"apache2-data"},{"binary_version":"2.4.18-2ubuntu3.17+esm17","binary_name":"apache2-suexec-custom"},{"binary_version":"2.4.18-2ubuntu3.17+esm17","binary_name":"apache2-suexec-pristine"},{"binary_version":"2.4.18-2ubuntu3.17+esm17","binary_name":"apache2-utils"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-17567.json"}},{"package":{"name":"apache2","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/apache2?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.27-2ubuntu3","2.4.29-1ubuntu1","2.4.29-1ubuntu2","2.4.29-1ubuntu3","2.4.29-1ubuntu4","2.4.29-1ubuntu4.1","2.4.29-1ubuntu4.2","2.4.29-1ubuntu4.3","2.4.29-1ubuntu4.4","2.4.29-1ubuntu4.5","2.4.29-1ubuntu4.6","2.4.29-1ubuntu4.7","2.4.29-1ubun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