CVE-2020-26961
09.12.2020, 01:15
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.Enginsight
| Vendor | Product | Version |
|---|---|---|
| mozilla | firefox | 𝑥 < 83.0 |
| mozilla | firefox_esr | 𝑥 < 78.5 |
| mozilla | thunderbird | 𝑥 < 78.5 |
𝑥
= Vulnerable software versions
Debian Releases
Debian Product | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| firefox |
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| firefox-esr |
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| thunderbird |
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Ubuntu Releases
Ubuntu Product | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| firefox |
| ||||||||||||||||||||||||
| mozjs38 |
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| mozjs52 |
| ||||||||||||||||||||||||
| mozjs60 |
| ||||||||||||||||||||||||
| mozjs68 |
| ||||||||||||||||||||||||
| thunderbird |
|
References