{"id":"USN-4975-1","summary":"python-django vulnerabilities","details":"It was discovered that the Django URLValidator function incorrectly handled\nnewlines and tabs. A remote attacker could possibly use this issue to\nperform a header injection attack. This issue only affected Ubuntu 20.04\nLTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-32052)\n\nRasmus Lerchedahl Petersen and Rasmus Wriedt Larsen discovered that Django\nincorrectly handled path sanitation in admindocs. A remote attacker could\npossibly use this issue to determine the existence of arbitrary files and\nin certain configurations obtain their contents. (CVE-2021-33203)\n\nIt was discovered that Django incorrectly handled IPv4 addresses with\nleading zeros. A remote attacker could possibly use this issue to perform a\nwide variety of attacks, including bypassing certain access restrictions.\n(CVE-2021-33571)\n","modified":"2026-02-10T04:42:12Z","published":"2021-06-02T10:49:04Z","related":["UBUNTU-CVE-2021-32052","UBUNTU-CVE-2021-33203","UBUNTU-CVE-2021-33571"],"upstream":["CVE-2021-32052","CVE-2021-33203","CVE-2021-33571","UBUNTU-CVE-2021-32052","UBUNTU-CVE-2021-33203","UBUNTU-CVE-2021-33571"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4975-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-32052"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33203"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33571"}],"affected":[{"package":{"name":"python-django","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/python-django@1:1.11.11-1ubuntu1.14?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.11.11-1ubuntu1.14"}]}],"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","1:1.11.11-1ubuntu1.5","1:1.11.11-1ubuntu1.6","1:1.11.11-1ubuntu1.7","1:1.11.11-1ubuntu1.8","1:1.11.11-1ubuntu1.9","1:1.11.11-1ubuntu1.10","1:1.11.11-1ubuntu1.11","1:1.11.11-1ubuntu1.12","1:1.11.11-1ubuntu1.13"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1:1.11.11-1ubuntu1.14","binary_name":"python-django"},{"binary_version":"1:1.11.11-1ubuntu1.14","binary_name":"python-django-common"},{"binary_version":"1:1.11.11-1ubuntu1.14","binary_name":"python3-django"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2021-33203","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"low"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4975-1.json"}},{"package":{"name":"python-django","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/python-django@2:2.2.12-1ubuntu0.7?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.2.12-1ubuntu0.7"}]}],"versions":["1:1.11.22-1ubuntu1","2:2.2.6-1ubuntu1","2:2.2.9-2ubuntu1","2:2.2.10-1","2:2.2.10-1ubuntu1","2:2.2.11-1","2:2.2.12-1","2:2.2.12-1ubuntu0.1","2:2.2.12-1ubuntu0.2","2:2.2.12-1ubuntu0.3","2:2.2.12-1ubuntu0.4","2:2.2.12-1ubuntu0.5","2:2.2.12-1ubuntu0.6"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2:2.2.12-1ubuntu0.7","binary_name":"python3-django"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2021-32052","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":"Ubuntu","score":"medium"}]},{"id":"CVE-2021-33203","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2021-33571","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4975-1.json"}}],"schema_version":"1.7.3"}