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PRIOn knowledge basePRION:CVE-2020-26961HistoryDec 09, 2020 - 1:15 a.m.
Design/Logic Flaw
2020-12-0901:15:00
PRIOn knowledge base
www.prio-n.com
7
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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| firefox | lt | 83.0 | |
| firefox_esr | lt | 78.5 | |
| thunderbird | lt | 78.5 |
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