CVE-2017-5419 Information

Description

If a malicious site repeatedly triggers a modal authentication prompt eventually the browser UI will become non-responsive requiring shutdown through the operating system. This is a denial of service (DOS) attack. This vulnerability affects Firefox 52 and Thunderbird 52.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.securityfocus.com/bid/96692 http://www.securitytracker.com/id/1037966 https://bugzilla.mozilla.org/show_bug.cgi?id=1312243 https://www.mozilla.org/security/advisories/mfsa2017-05/ https://www.mozilla.org/security/advisories/mfsa2017-09/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5