CVE-2021-23983 Information

Description

By causing a transition on a parent node by removing a CSS rule an invalid property for a marker could have been applied resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 87.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Reference

https://www.mozilla.org/security/advisories/mfsa2021-10/ https://bugzilla.mozilla.org/show_bug.cgi?id=1692684

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5