If a valid external protocol handler was referenced in an image tag, the resulting broken image size could be distinguished from a broken image size of a non-existent protocol handler. This allowed an attacker to successfully probe whether an external protocol handler was registered. This vulnerability affects Firefox < 82.
References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1658881 Issue Tracking Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-45/ Release Notes Vendor Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mozilla

Published: 2020-10-22T20:32:46

Updated: 2020-10-22T20:32:46

Reserved: 2020-07-10T00:00:00


Link: CVE-2020-15680

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2020-10-22T21:15:13.263

Modified: 2020-10-30T13:18:05.340


Link: CVE-2020-15680

JSON object: View

cve-icon Redhat Information

No data.