{"id":"UBUNTU-CVE-2019-12387","details":"In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.","modified":"2026-01-30T02:38:03.806156Z","published":"2019-06-10T12:29:00Z","related":["USN-4308-1","USN-4308-2"],"upstream":["CVE-2019-12387"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-12387"},{"type":"REPORT","url":"https://labs.twistedmatrix.com/2019/06/twisted-1921-released.html"},{"type":"REPORT","url":"https://twistedmatrix.com/pipermail/twisted-python/2019-June/032352.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4308-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4308-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-12387"}],"affected":[{"package":{"name":"twisted","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/twisted@13.2.0-1ubuntu1.2+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.2.0-1ubuntu1.2+esm1"}]}],"versions":["13.0.0-1ubuntu1","13.2.0-1ubuntu1","13.2.0-1ubuntu1.2"],"ecosystem_specific":{"binaries":[{"binary_name":"python-twisted","binary_version":"13.2.0-1ubuntu1.2+esm1"},{"binary_name":"python-twisted-bin","binary_version":"13.2.0-1ubuntu1.2+esm1"},{"binary_name":"python-twisted-conch","binary_version":"1:13.2.0-1ubuntu1.2+esm1"},{"binary_name":"python-twisted-core","binary_version":"13.2.0-1ubuntu1.2+esm1"},{"binary_name":"python-twisted-lore","binary_version":"13.2.0-1ubuntu1.2+esm1"},{"binary_name":"python-twisted-mail","binary_version":"13.2.0-1ubuntu1.2+esm1"},{"binary_name":"python-twisted-names","binary_version":"13.2.0-1ubuntu1.2+esm1"},{"binary_name":"python-twisted-news","binary_version":"13.2.0-1ubuntu1.2+esm1"},{"binary_name":"python-twisted-runner","binary_version":"13.2.0-1ubuntu1.2+esm1"},{"binary_name":"python-twisted-web","binary_version":"13.2.0-1ubuntu1.2+esm1"},{"binary_name":"python-twisted-words","binary_version":"13.2.0-1ubuntu1.2+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12387.json"}},{"package":{"name":"twisted","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/twisted@16.0.0-1ubuntu0.4?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"16.0.0-1ubuntu0.4"}]}],"versions":["15.2.1-1ubuntu2","15.5.0-1","15.5.0-2","15.5.0-2ubuntu1","15.5.0-4","16.0.0~pre1-1","16.0.0~pre1-1ubuntu1","16.0.0~pre1-2ubuntu1","16.0.0~pre1-3","16.0.0-1","16.0.0-1ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_name":"python-twisted","binary_version":"16.0.0-1ubuntu0.4"},{"binary_name":"python-twisted-bin","binary_version":"16.0.0-1ubuntu0.4"},{"binary_name":"python-twisted-conch","binary_version":"1:16.0.0-1ubuntu0.4"},{"binary_name":"python-twisted-core","binary_version":"16.0.0-1ubuntu0.4"},{"binary_name":"python-twisted-mail","binary_version":"16.0.0-1ubuntu0.4"},{"binary_name":"python-twisted-names","binary_version":"16.0.0-1ubuntu0.4"},{"binary_name":"python-twisted-news","binary_version":"16.0.0-1ubuntu0.4"},{"binary_name":"python-twisted-runner","binary_version":"16.0.0-1ubuntu0.4"},{"binary_name":"python-twisted-web","binary_version":"16.0.0-1ubuntu0.4"},{"binary_name":"python-twisted-words","binary_version":"16.0.0-1ubuntu0.4"},{"binary_name":"python3-twisted","binary_version":"16.0.0-1ubuntu0.4"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12387.json"}},{"package":{"name":"twisted","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/twisted@17.9.0-2ubuntu0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.9.0-2ubuntu0.1"}]}],"versions":["16.6.0-2ubuntu3","17.9.0-1","17.9.0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"python-twisted","binary_version":"17.9.0-2ubuntu0.1"},{"binary_name":"python-twisted-bin","binary_version":"17.9.0-2ubuntu0.1"},{"binary_name":"python-twisted-conch","binary_version":"1:17.9.0-2ubuntu0.1"},{"binary_name":"python-twisted-core","binary_version":"17.9.0-2ubuntu0.1"},{"binary_name":"python-twisted-mail","binary_version":"17.9.0-2ubuntu0.1"},{"binary_name":"python-twisted-names","binary_version":"17.9.0-2ubuntu0.1"},{"binary_name":"python-twisted-news","binary_version":"17.9.0-2ubuntu0.1"},{"binary_name":"python-twisted-runner","binary_version":"17.9.0-2ubuntu0.1"},{"binary_name":"python-twisted-web","binary_version":"17.9.0-2ubuntu0.1"},{"binary_name":"python-twisted-words","binary_version":"17.9.0-2ubuntu0.1"},{"binary_name":"python3-twisted","binary_version":"17.9.0-2ubuntu0.1"},{"binary_name":"python3-twisted-bin","binary_version":"17.9.0-2ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12387.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"low"}]}