{"id":"DEBIAN-CVE-2019-12383","details":"Tor Browser before 8.0.1 has an information exposure vulnerability. It allows remote attackers to detect the browser's UI locale by measuring a button width, even if the user has a \"Don't send my language\" setting.","modified":"2026-09-21T07:02:01.675866326Z","published":"2019-05-28T03:29:00.513Z","upstream":["CVE-2019-12383"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2019-12383"}],"affected":[{"package":{"name":"firefox-esr","ecosystem":"Debian:12","purl":"pkg:deb/debian/firefox-esr?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["102.11.0esr-1","102.12.0esr-1","102.12.0esr-1~deb10u1","102.12.0esr-1~deb11u1","102.12.0esr-1~deb12u1","102.13.0esr-1","102.13.0esr-1~deb10u1","102.13.0esr-1~deb11u1","102.13.0esr-1~deb12u1","102.14.0esr-1~deb10u1","102.14.0esr-1~deb11u1","102.14.0esr-1~deb12u1","102.15.0esr-1~deb10u1","102.15.0esr-1~deb11u1","102.15.0esr-1~deb12u1","102.15.1esr-1~deb10u1","102.15.1esr-1~deb11u1","102.15.1esr-1~deb12u1","115.0.2esr-1","115.1.0esr-1","115.10.0esr-1","115.10.0esr-1~deb10u1","115.10.0esr-1~deb11u1","115.10.0esr-1~deb12u1","115.11.0esr-1","115.11.0esr-1~deb10u1","115.11.0esr-1~deb11u1","115.11.0esr-1~deb12u1","115.12.0esr-1","115.12.0esr-1~deb10u1","115.12.0esr-1~deb11u1","115.12.0esr-1~deb12u1","115.13.0esr-1","115.13.0esr-1~deb11u1","115.13.0esr-1~deb12u1","115.13.0esr-2","115.14.0esr-1","115.14.0esr-1~deb11u1","115.14.0esr-1~deb12u1","115.15.0esr-1","115.15.0esr-1~deb11u1","115.15.0esr-1~deb12u1","115.2.0esr-1","115.2.1esr-1","115.3.0esr-1","115.3.0esr-1~deb10u1","115.3.0esr-1~deb11u1","115.3.0esr-1~deb12u1","115.3.1esr-1~deb10u1","115.3.1esr-1~deb11u1","115.4.0esr-1","115.4.0esr-1~deb10u1","115.4.0esr-1~deb11u1","115.4.0esr-1~deb12u1","115.5.0esr-1","115.5.0esr-1~deb10u1","115.5.0esr-1~deb11u1","115.5.0esr-1~deb12u1","115.6.0esr-1","115.6.0esr-1~deb10u1","115.6.0esr-1~deb11u1","115.6.0esr-1~deb12u1","115.7.0esr-1","115.7.0esr-1~deb10u1","115.7.0esr-1~deb11u1","115.7.0esr-1~deb12u1","115.8.0esr-1","115.8.0esr-1~deb10u1","115.8.0esr-1~deb11u1","115.8.0esr-1~deb12u1","115.9.0esr-1","115.9.0esr-1~deb11u1","115.9.0esr-1~deb12u1","115.9.0esr-2","115.9.1esr-1","115.9.1esr-1~deb10u1","115.9.1esr-1~deb11u1","115.9.1esr-1~deb12u1","128.10.0esr-1","128.10.0esr-1~deb12u1","128.10.1esr-1","128.10.1esr-1~deb11u1","128.10.1esr-1~deb12u1","128.11.0esr-1","128.11.0esr-1~deb11u1","128.11.0esr-1~deb12u1","128.12.0esr-1","128.12.0esr-1~deb11u1","128.12.0esr-1~deb12u1","128.13.0esr-1","128.13.0esr-1~deb11u1","128.13.0esr-1~deb12u1","128.14.0esr-1","128.14.0esr-1~deb11u1","128.14.0esr-1~deb12u1","128.14.0esr-1~deb13u1","128.3.0esr-1","128.3.0esr-1~deb11u1","128.3.0esr-1~deb11u2","128.3.0esr-1~deb12u1","128.3.0esr-2","128.3.1esr-1","128.3.1esr-1~deb11u1","128.3.1esr-1~deb12u1","128.3.1esr-2","128.4.0esr-1","128.4.0esr-1~deb11u1","128.4.0esr-1~deb12u1","128.5.0esr-1","128.5.0esr-1~deb11u1","128.5.0esr-1~deb12u1","128.5.1esr-1","128.6.0esr-1","128.6.0esr-1~deb11u1","128.6.0esr-1~deb11u2","128.6.0esr-1~deb11u3","128.6.0esr-1~deb12u1","128.6.0esr-2","128.6.0esr-3","128.6.0esr-4","128.7.0esr-1","128.7.0esr-1~deb11u1","128.7.0esr-1~deb12u1","128.8.0esr-1","128.8.0esr-1~deb11u1","128.8.0esr-1~deb12u1","128.9.0esr-1","128.9.0esr-1~deb11u1","128.9.0esr-1~deb12u1","128.9.0esr-2","140.10.0esr-1","140.10.0esr-1~deb11u1","140.10.0esr-1~deb12u1","140.10.0esr-1~deb13u1","140.10.1esr-1","140.10.1esr-1~deb11u1","140.10.1esr-1~deb12u1","140.10.1esr-1~deb13u1","140.10.2esr-1","140.10.2esr-1~deb11u1","140.10.2esr-1~deb12u1","140.10.2esr-1~deb13u1","140.11.0esr-1","140.11.0esr-1~deb11u1","140.11.0esr-1~deb12u1","140.11.0esr-1~deb13u1","140.12.0esr-1","140.12.0esr-1~deb11u1","140.12.0esr-1~deb12u1","140.12.0esr-1~deb13u1","140.13.0esr-1","140.13.0esr-1~deb11u1","140.13.0esr-1~deb12u1","140.13.0esr-1~deb13u1","140.13.0esr-2","140.14.0esr-1~deb11u1","140.14.0esr-1~deb12u1","140.14.0esr-1~deb13u1","140.14.0esr-2","140.15.0esr-1","140.15.0esr-1~deb12u1","140.15.0esr-1~deb13u1","140.16.0esr-1","140.16.0esr-1~deb12u1","140.16.0esr-1~deb13u1","140.3.0esr-1","140.3.0esr-1~deb11u1","140.3.0esr-1~deb11u2","140.3.0esr-1~deb12u1","140.3.0esr-1~deb13u1","140.3.0esr-2","140.3.1esr-1","140.3.1esr-1~deb11u1","140.3.1esr-1~deb12u1","140.3.1esr-1~deb13u1","140.3.1esr-2","140.4.0esr-1","140.4.0esr-1~deb11u1","140.4.0esr-1~deb12u1","140.4.0esr-1~deb13u1","140.5.0esr-1","140.5.0esr-1~deb11u1","140.5.0esr-1~deb12u1","140.5.0esr-1~deb13u1","140.6.0esr-1","140.6.0esr-1~deb11u1","140.6.0esr-1~deb12u1","140.6.0esr-1~deb13u1","140.7.0esr-1","140.7.0esr-1~deb11u1","140.7.0esr-1~deb12u1","140.7.0esr-1~deb13u1","140.8.0esr-1","140.8.0esr-1~deb11u1","140.8.0esr-1~deb12u1","140.8.0esr-1~deb13u1","140.9.0esr-1","140.9.0esr-1~deb11u1","140.9.0esr-1~deb12u1","140.9.0esr-1~deb13u1","140.9.1esr-1","140.9.1esr-1~deb11u1","140.9.1esr-1~deb12u1","140.9.1esr-1~deb13u1","153.1.0esr-1","153.2.0esr-1","153.3.0esr-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-12383.json"}},{"package":{"name":"firefox-esr","ecosystem":"Debian:13","purl":"pkg:deb/debian/firefox-esr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