CVE-2018-5142

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.

5.3

CVSS

Severity: Medium

CVSS 3.0 •

CVSS 2.0 •

EPSS 1.22% Top 25%

Vendor Advisory ubuntu.com Vendor Advisory mozilla.org

Affected: Mozilla Firefox

References

Link	Tags
http://www.securityfocus.com/bid/103386	vdb entry third party advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1366357	permissions required
http://www.securitytracker.com/id/1040514	vdb entry third party advisory
https://usn.ubuntu.com/3596-1/	third party advisory vendor advisory
https://www.mozilla.org/security/advisories/mfsa2018-06/	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-5142?: CVE-2018-5142 has been scored as a medium severity vulnerability.
How to fix CVE-2018-5142?: To fix CVE-2018-5142, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-5142 being actively exploited in the wild?: It is possible that CVE-2018-5142 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-5142?: CVE-2018-5142 affects Mozilla Firefox.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.