A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal pages could have used this attack to bypass our built-in sanitizer. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
|Base Score:||6.1||Base Metrics:||AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N|
|Access Vector:||Network||Attack Complexity:||Low|
|Privileges Required:||None||User Interaction:||Required|
|Integrity Impact:||Low||Availability Impact:||None|
|Oracle Linux version 6 (firefox)||ELSA-2020-5257||2020-12-01|
|Oracle Linux version 6 (thunderbird)||ELSA-2020-5238||2020-12-01|
|Oracle Linux version 7 (firefox)||ELSA-2020-5239||2020-12-01|
|Oracle Linux version 7 (thunderbird)||ELSA-2020-5235||2020-12-01|
|Oracle Linux version 8 (firefox)||ELSA-2020-5237||2020-12-01|
|Oracle Linux version 8 (thunderbird)||ELSA-2020-5236||2020-12-01|
This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team