{"id":"DEBIAN-CVE-2011-1521","details":"The urllib and urllib2 modules in Python 2.x before 2.7.2 and 3.x before 3.2.1 process Location headers that specify redirection to file: URLs, which makes it easier for remote attackers to obtain sensitive information or cause a denial of service (resource consumption) via a crafted URL, as demonstrated by the file:///etc/passwd and file:///dev/zero URLs.","modified":"2026-09-01T06:47:35.187231942Z","published":"2011-05-24T23:55:02.840Z","upstream":["CVE-2011-1521"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2011-1521"}],"affected":[{"package":{"name":"python2.7","ecosystem":"Debian:11","purl":"pkg:deb/debian/python2.7?arch=source&distro=bullseye"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.1-7"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2011-1521.json"}}],"schema_version":"1.9.0"}