CVE-2018-5142

MEDIUM

Firefox < 59.0 - Permission Spoofing via Media Capture and Streams API

Title source: llm

Description

If Media Capture and Streams API permission is requested from documents with "data:" or "blob:" URLs, the permission notifications do not properly display the originating domain. The notification states "Unknown protocol" as the requestee, leading to user confusion about which site is asking for this permission. This vulnerability affects Firefox < 59.

References (5)

Core 5

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/103386

Permissions Required x_refsource_confirm

https://bugzilla.mozilla.org/show_bug.cgi?id=1366357

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1040514

Third Party Advisory vendor-advisory x_refsource_ubuntu

https://usn.ubuntu.com/3596-1/

Vendor Advisory x_refsource_confirm

https://www.mozilla.org/security/advisories/mfsa2018-06/

Scores

CVSS v3 5.3

EPSS 0.0118

EPSS Percentile 79.0%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Details

Status published

Products (4)

canonical/ubuntu_linux 14.04

canonical/ubuntu_linux 16.04

canonical/ubuntu_linux 17.10

mozilla/firefox < 59.0

Published Jun 11, 2018

Tracked Since Feb 18, 2026