CVE-2019-11711 Information

Description

When an inner window is reused it does not consider the use of document.domain for cross-origin protections. If pages on different subdomains ever cooperatively use document.domain then either page can abuse this to inject script into arbitrary pages on the other subdomain even those that did not use document.domain to relax their origin security. This vulnerability affects Firefox ESR 60.8 Firefox 68 and Thunderbird 60.8.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.html http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.html http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00073.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html https://bugzilla.mozilla.org/show_bug.cgi?id=1552541 https://lists.debian.org/debian-lts-announce/2019/08/msg00001.html https://lists.debian.org/debian-lts-announce/2019/08/msg00002.html https://security.gentoo.org/glsa/201908-12 https://security.gentoo.org/glsa/201908-20 https://www.mozilla.org/security/advisories/mfsa2019-21/ https://www.mozilla.org/security/advisories/mfsa2019-22/ https://www.mozilla.org/security/advisories/mfsa2019-23/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8