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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Mozilla Firefox
< 86affected
Mozilla Thunderbird
< 78.8affected
Mozilla Firefox ESR
< 78.8affected
References
- https://www.mozilla.org/security/advisories/mfsa2021-07/ ↗
- https://www.mozilla.org/security/advisories/mfsa2021-09/ ↗
- https://www.mozilla.org/security/advisories/mfsa2021-08/ ↗
- https://bugzilla.mozilla.org/show_bug.cgi?id=1690976 ↗
- https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html ↗
- https://www.debian.org/security/2021/dsa-4866 ↗
- https://security.gentoo.org/glsa/202104-10 ↗
- https://security.gentoo.org/glsa/202104-09 ↗