CVE-2021-23973 Information

Description

When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86 Thunderbird < 78.8 and Firefox ESR < 78.8.

CVSS Vector

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

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=1690976 https://www.mozilla.org/security/advisories/mfsa2021-08/ https://www.mozilla.org/security/advisories/mfsa2021-09/ https://www.mozilla.org/security/advisories/mfsa2021-07/ https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html https://www.debian.org/security/2021/dsa-4866 https://security.gentoo.org/glsa/202104-09 https://security.gentoo.org/glsa/202104-10

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

6.5