CVE - CVE-2020-26961

CVE-ID
CVE-2020-26961	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://www.mozilla.org/security/advisories/mfsa2020-50/ URL:https://www.mozilla.org/security/advisories/mfsa2020-50/ CONFIRM:https://www.mozilla.org/security/advisories/mfsa2020-51/ URL:https://www.mozilla.org/security/advisories/mfsa2020-51/ CONFIRM:https://www.mozilla.org/security/advisories/mfsa2020-52/ URL:https://www.mozilla.org/security/advisories/mfsa2020-52/ MISC:https://bugzilla.mozilla.org/show_bug.cgi?id=1672528 URL:https://bugzilla.mozilla.org/show_bug.cgi?id=1672528
Assigning CNA
Mozilla Corporation
Date Record Created
20201012	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20201012)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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