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CVE-2018-12367

4.3 · MEDIUM

In the previous mitigations for Spectre, the resolution or precision of various methods was reduced to counteract the ability to measure precise time intervals.

Published Oct 18, 2018CWE-20EPSS 1.98%

Overview

CVE-2018-12367 is a medium-severity vulnerability. It was published on October 18, 2018 and has a CVSS 3.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/104561Refwww.securitytracker.com/id/1041193Refbugzilla.mozilla.org/show_bug.cgi?id=1462891Reflists.debian.org/debian-lts-announce/2018/11/msg00011.htmlRefsecurity.gentoo.org/glsa/201810-01Refsecurity.gentoo.org/glsa/201811-13Refusn.ubuntu.com/3705-1/Refwww.debian.org/security/2018/dsa-4295Refwww.mozilla.org/security/advisories/mfsa2018-15/Refwww.mozilla.org/security/advisories/mfsa2018-16/

How CyberStrike helps

Frequently asked questions

What is CVE-2018-12367?

CVE-2018-12367 is a medium-severity vulnerability. It was published on October 18, 2018 and has a CVSS 3.0 base score of 4.3 (MEDIUM).

How severe is CVE-2018-12367?

This vulnerability has a CVSS 3.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-12367?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-12367?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-12367 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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