CVE-2021-23973

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.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1690976

https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html

https://security.gentoo.org/glsa/202104-09

https://security.gentoo.org/glsa/202104-10

https://www.debian.org/security/2021/dsa-4866

https://www.mozilla.org/security/advisories/mfsa2021-07/

https://www.mozilla.org/security/advisories/mfsa2021-08/

https://www.mozilla.org/security/advisories/mfsa2021-09/

Details

Risk Information

CVSS v2

CVSS v3