CVE-2019-9809

Description

If the source for resources on a page is through an FTP connection, it is possible to trigger a series of modal alert messages for these resources through invalid credentials or locations. These messages cannot be immediately dismissed, allowing for a denial of service (DOS) attack. This vulnerability affects Firefox < 66.

Primary references

• security@mozilla.org — Exploit, Issue Tracking, Patch, Vendor Advisory
• security@mozilla.org — Issue Tracking, Permissions Required, Vendor Advisory
• security@mozilla.org — Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Patch, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Permissions Required, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory