UBUNTU-CVE-2021-23973

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UBUNTU-CVE-2021-23973

Summary:

Details: 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://ubuntu.com/security/CVE-2021-23973, https://www.mozilla.org/en-US/security/advisories/mfsa2021-07/#CVE-2021-23973, https://www.mozilla.org/en-US/security/advisories/mfsa2021-08/#CVE-2021-23973, https://www.mozilla.org/en-US/security/advisories/mfsa2021-09/#CVE-2021-23973, https://bugzilla.mozilla.org/show_bug.cgi?id=1690976, https://www.mozilla.org/security/advisories/mfsa2021-07/, https://www.mozilla.org/security/advisories/mfsa2021-08/, https://www.mozilla.org/security/advisories/mfsa2021-09/, https://ubuntu.com/security/notices/USN-4756-1, https://ubuntu.com/security/notices/USN-4936-1, https://www.cve.org/CVERecord?id=CVE-2021-23973