Information disclosure in Mozilla Firefox
CVE-2018-5140
Image for moz-icons can be accessed through the "moz-icon:" protocol through script in web content even when otherwise prohibited. This could allow for information leakage of which applications are associated with specific MIME types by a malicious page. This vulnerability affects Firefox < 59.
Vulnerability class: Information Disclosure
EPSS: 0.013 (67.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/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 (Permissions Required, x_refsource_CONFIRM)
- security@mozilla.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@mozilla.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- security@mozilla.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-5140?
- CVE-2018-5140 is a medium-severity vulnerability in Mozilla Firefox, classified under Information Disclosure. CVSS score: 5.3/10. Published 2018-06-11.
- How severe is CVE-2018-5140?
- Medium severity. CVSS v3 base score is 5.3 out of 10.