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MFSA2020-36 Firefox: Security Vulnerabilities fixed in Firefox 80 (CVE-2020-15666)

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MFSA2020-36 Firefox: Security Vulnerabilities fixed in Firefox 80 (CVE-2020-15666)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
08/25/2020
Created
08/27/2020
Added
08/26/2020
Modified
10/15/2020

Description

When trying to load a non-video in an audio/video context the exact status code (200, 302, 404, 500, 412, 403, etc.) was disclosed via the MediaError Message. This level of information leakage is inconsistent with the standardized onerror/onsuccess disclosure and can lead to inferring login status to services or device discovery on a local network among other attacks. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

Solution(s)

  • mozilla-firefox-upgrade-80_0

References

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