Information disclosure in Mozilla Firefox
CVE-2018-12358
Service workers can use redirection to avoid the tainting of cross-origin resources in some instances, allowing a malicious site to read responses which are supposed to be opaque. This vulnerability affects Firefox < 61.
Vulnerability class: Information Disclosure
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: 0.013 (68.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
Weakness classification (CWE)
References
- security.gentoo.org/glsa/201810-01 (vendor-advisory, Third Party Advisory, Mitigation)
- www.mozilla.org/security/advisories/mfsa2018-15/ (Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required, Issue Tracking)
- www.securitytracker.com/id/1041193 (VDB Entry, Third Party Advisory, vdb-entry)
- usn.ubuntu.com/3705-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-12358?
- CVE-2018-12358 is a medium-severity vulnerability in Mozilla Firefox, classified under Information Disclosure. CVSS score: 4.3/10. Published 2018-10-18.
- How severe is CVE-2018-12358?
- Medium severity. CVSS v3 base score is 4.3 out of 10.