CVE-2020-26961
UNKNOWN
Published 2020-12-09T00:23:31
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Description
When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped through IPv6, these addresses were erroneously let through, leading to a potential DNS Rebinding attack. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
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Published: 2020-12-09T00:23:31
Last Modified: 2024-08-04T16:03:23.165Z
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