Improper input validation in Mozilla Firefox
CVE-2018-12367
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.020 (79.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Thunderbird — versions unspecified
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
References
- security.gentoo.org/glsa/201810-01 (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2018-15/ (Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Vendor Advisory, Permissions Required, Issue Tracking)
- lists.debian.org/debian-lts-announce/2018/11/msg00011.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/201811-13 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2018/dsa-4295 (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2018-16/ (Vendor Advisory)
- www.securitytracker.com/id/1041193 (VDB Entry, Third Party Advisory, vdb-entry)
- www.mozilla.org/security/advisories/mfsa2018-19/ (Vendor Advisory)
- usn.ubuntu.com/3705-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-12367?
- CVE-2018-12367 is a medium-severity vulnerability in Mozilla Firefox, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2018-10-18.
- How severe is CVE-2018-12367?
- Medium severity. CVSS v3 base score is 4.3 out of 10.