CVE-2017-5403 Information

Description

When adding a range to an object in the DOM it is possible to use \addRange\ to add the range to an incorrect root object. This triggers a use-after-free resulting in a potentially exploitable crash. This vulnerability affects Firefox 52 and Thunderbird 52.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/96691 http://www.securitytracker.com/id/1037966 https://bugzilla.mozilla.org/show_bug.cgi?id=1340186 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

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8