ByteOS Network

NVD Vulnerability Details :

CVE-2020-26961

Analyzed

Source-security@mozilla.org

Published At-09 Dec, 2020 | 01:15

Updated At-10 Dec, 2020 | 18:20

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Primary	3.1	6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Primary	2.0	4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N

CPE Matches

Mozilla Corporation

>>firefox>>Versions before 83.0(exclusive)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

Mozilla Corporation

>>firefox_esr>>Versions before 78.5(exclusive)

cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*

Mozilla Corporation

>>thunderbird>>Versions before 78.5(exclusive)

cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
NVD-CWE-noinfo	Primary	nvd@nist.gov

References

Hyperlink	Source	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1672528	security@mozilla.org	Issue Tracking Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-50/	security@mozilla.org	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-51/	security@mozilla.org	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-52/	security@mozilla.org	Vendor Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History