Published: 26/02/2021 Updated: 26/02/2021

Vulnerability Summary

Mozilla Firefox could allow a remote malicious user to obtain sensitive information, caused by an error when trying to load a cross-origin resource in an audio/video context. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to obtain information about the resource.

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Vendor Advisories

Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code or information disclosure For the stable distribution (buster), these problems have been fixed in version 7880esr-1~deb10u1 We recommend that you upgrade your firefox-esr packages For the detailed secur ...
A security issue was found in Firefox before version 860 and Thunderbird before version 788 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 ...

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