CVE-2020-26961 - log back

CVE-2020-26961 edited at 17 Nov 2020 18:28:50
Severity
- Unknown
+ Medium
Remote
- Unknown
+ Remote
Type
- Unknown
+ Insufficient validation
Description
+ A security issue has been found in Firefox before 83.0 where, 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.
References
+ https://www.mozilla.org/en-US/security/advisories/mfsa2020-50/#CVE-2020-26961
+ https://bugzilla.mozilla.org/show_bug.cgi?id=1672528
Notes
CVE-2020-26961 created at 17 Nov 2020 18:15:06