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
EPSS: 0.013 (66.9th percentile) — read the EPSS interpretation.
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.
Affected products
- Mozilla Firefox — versions unspecified
- Canonical Ubuntu_linux — versions 14.04, 16.04, 17.10
Weakness classification (CWE)
References
- security@mozilla.org (vendor-advisory, Third Party Advisory, Mitigation, x_refsource_GENTOO)
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
- security@mozilla.org (Permissions Required, x_refsource_CONFIRM, Issue Tracking)
- security@mozilla.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- security@mozilla.org (x_refsource_UBUNTU, 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.