Is CVE-2018-5142 in the CISA KEV catalog?

No. CVE-2018-5142 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-5142?

CVE-2018-5142 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2018-5142?

CVE-2018-5142 has an EPSS score of 1.21% (65th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-5142?

Upgrade firefox on debian unstable to 59.0-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2018-5142

MEDIUM

5.3

CVSS v3

NVD

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.

How to fix

Remediation Available

firefoxDebian

Fixed in:59.0-1CVE-2018-5142

firefoxUbuntu

Fixed in:59.0+build5-0ubuntu0.14.04.1USN-3596-1

Fixed in:59.0+build5-0ubuntu0.16.04.1USN-3596-1

DeveloperEditionWindows application

Affected:59.0Fixed in:59.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:59.0Fixed in:59.0Mozilla

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

1.21%probability of exploitation in 30 days

65thpercentile

Moderate risk: more likely to be exploited than 65% of all known CVEs.

References

Vendor Advisory1

mozilla.org

Third-Party Advisory3

Other references1

bugzilla.mozilla.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.