CVE-2018-12367

Name: CVE-2018-12367
Creator: NVD / NIST
Published: 2018-10-18T13:29:03.087+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.98%

Last modified Jun 17, 2026

CVE-2018-12367 is a vulnerability of currently unknown severity. In the previous mitigations for Spectre, the resolution or precision of various methods was reduced to counteract the ability to measure precise time intervals. In that work PerformanceNavigationTiming was not adjusted but it was found that it could be used as a precision timer. EPSS estimates a 1.98% chance of exploitation in the next 30 days.

Description

In the previous mitigations for Spectre, the resolution or precision of various methods was reduced to counteract the ability to measure precise time intervals. In that work PerformanceNavigationTiming was not adjusted but it was found that it could be used as a precision timer. This vulnerability affects Thunderbird < 60, Firefox ESR < 60.1, and Firefox < 61.

Metrics

EPSS Probability

1.98%

78.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10
Canonical	Ubuntu Linux	18.04
Mozilla	Firefox	< 60.1.0
Mozilla	Firefox	< 61.0
Mozilla	Thunderbird	< 60.0

References

http://www.securityfocus.com/bid/104561Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041193Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1462891Issue Tracking, Permissions Required, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00011.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201810-01Third Party Advisory
https://security.gentoo.org/glsa/201811-13Third Party Advisory
https://usn.ubuntu.com/3705-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4295Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-15/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-16/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-19/Vendor Advisory
http://www.securityfocus.com/bid/104561Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041193Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1462891Issue Tracking, Permissions Required, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00011.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201810-01Third Party Advisory
https://security.gentoo.org/glsa/201811-13Third Party Advisory
https://usn.ubuntu.com/3705-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4295Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-15/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-16/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-19/Vendor Advisory

Timeline

Published: Oct 18, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12367?

How severe is CVE-2018-12367?

Severity scoring for CVE-2018-12367 is pending analysis. The EPSS model estimates a 1.98% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12367?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-12367?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST