{"id":"UBUNTU-CVE-2019-14232","details":"An issue was discovered in Django 1.11.x before 1.11.23, 2.1.x before 2.1.11, and 2.2.x before 2.2.4. If django.utils.text.Truncator's chars() and words() methods were passed the html=True argument, they were extremely slow to evaluate certain inputs due to a catastrophic backtracking vulnerability in a regular expression. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which were thus vulnerable.","modified":"2026-04-13T10:50:42.837497Z","published":"2019-08-01T10:00:00Z","related":["USN-4084-1"],"upstream":["CVE-2019-14232"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-14232"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4084-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-14232"}],"affected":[{"package":{"name":"python-django","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/python-django@1.6.11-0ubuntu1.3+esm11?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.4-1ubuntu1","1.6-1","1.6.1-1","1.6.1-2","1.6.1-2ubuntu0.1","1.6.1-2ubuntu0.2","1.6.1-2ubuntu0.3","1.6.1-2ubuntu0.4","1.6.1-2ubuntu0.5","1.6.1-2ubuntu0.6","1.6.1-2ubuntu0.8","1.6.1-2ubuntu0.9","1.6.1-2ubuntu0.10","1.6.1-2ubuntu0.11","1.6.1-2ubuntu0.12","1.6.1-2ubuntu0.13","1.6.1-2ubuntu0.14","1.6.1-2ubuntu0.15","1.6.1-2ubuntu0.16","1.6.11-0ubuntu1","1.6.11-0ubuntu1.1","1.6.11-0ubuntu1.2","1.6.11-0ubuntu1.3","1.6.11-0ubuntu1.3+esm1","1.6.11-0ubuntu1.3+esm2","1.6.11-0ubuntu1.3+esm3","1.6.11-0ubuntu1.3+esm4","1.6.11-0ubuntu1.3+esm5","1.6.11-0ubuntu1.3+esm6","1.6.11-0ubuntu1.3+esm7","1.6.11-0ubuntu1.3+esm8","1.6.11-0ubuntu1.3+esm9","1.6.11-0ubuntu1.3+esm10","1.6.11-0ubuntu1.3+esm11"],"ecosystem_specific":{"binaries":[{"binary_version":"1.6.11-0ubuntu1.3+esm11","binary_name":"python-django"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14232.json"}},{"package":{"name":"python-django","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/python-django@1.8.7-1ubuntu5.10?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.7-1ubuntu5.10"}]}],"versions":["1.7.9-1ubuntu5","1.8.5-2ubuntu1","1.8.7-1ubuntu1","1.8.7-1ubuntu2","1.8.7-1ubuntu3","1.8.7-1ubuntu4","1.8.7-1ubuntu5","1.8.7-1ubuntu5.1","1.8.7-1ubuntu5.2","1.8.7-1ubuntu5.4","1.8.7-1ubuntu5.5","1.8.7-1ubuntu5.6","1.8.7-1ubuntu5.7","1.8.7-1ubuntu5.8","1.8.7-1ubuntu5.9"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.7-1ubuntu5.10","binary_name":"python-django"},{"binary_version":"1.8.7-1ubuntu5.10","binary_name":"python-django-common"},{"binary_version":"1.8.7-1ubuntu5.10","binary_name":"python3-django"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14232.json"}},{"package":{"name":"python-django","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/python-django@1:1.11.11-1ubuntu1.5?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.11.11-1ubuntu1.5"}]}],"versions":["1:1.11.4-1ubuntu1","1:1.11.6-1ubuntu1","1:1.11.9-1ubuntu1","1:1.11.11-1ubuntu1","1:1.11.11-1ubuntu1.1","1:1.11.11-1ubuntu1.2","1:1.11.11-1ubuntu1.3","1:1.11.11-1ubuntu1.4"],"ecosystem_specific":{"binaries":[{"binary_version":"1:1.11.11-1ubuntu1.5","binary_name":"python-django"},{"binary_version":"1:1.11.11-1ubuntu1.5","binary_name":"python-django-common"},{"binary_version":"1:1.11.11-1ubuntu1.5","binary_name":"python3-django"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14232.json"}},{"package":{"name":"python-django","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/python-django@1:1.11.22-1ubuntu1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.11.22-1ubuntu1"}]}],"ecosystem_specific":{"binaries":[{"binary_version":"1:1.11.22-1ubuntu1","binary_name":"python-django"},{"binary_version":"1:1.11.22-1ubuntu1","binary_name":"python-django-common"},{"binary_version":"1:1.11.22-1ubuntu1","binary_name":"python3-django"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14232.json"}}],"schema_version":"1.7.5","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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}