By rewriting the Host: request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-1571-1 firefox-esr security update
Debian DSA Debian DSA DSA-4324-1 firefox-esr security update
EUVD EUVD EUVD-2018-4369 By rewriting the Host: request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.
Ubuntu USN Ubuntu USN USN-3801-1 Firefox vulnerabilities
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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-05T08:30:59.771Z

Reserved: 2018-06-14T00:00:00.000Z

Link: CVE-2018-12395

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-02-28T18:29:00.743

Modified: 2024-11-21T03:45:08.050

Link: CVE-2018-12395

cve-icon Redhat

Severity : Moderate

Publid Date: 2018-10-23T00:00:00Z

Links: CVE-2018-12395 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses