Improper input validation in Apple Mac OS X
CVE-2018-5121
Low descenders on some Tibetan characters in several fonts on OS X are clipped when rendered in the addressbar. When used as part of an Internationalized Domain Name (IDN) this can be used for domain name spoofing attacks. Note: This attack only affects OS X operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 58.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.015 (71.1th 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:N/I:L/A:N.
Affected products
- Apple Mac_os_x
- Mozilla Firefox — versions unspecified
Weakness classification (CWE)
References
- security@mozilla.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- security@mozilla.org (Permissions Required, x_refsource_CONFIRM, Issue Tracking)
- security@mozilla.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-5121?
- CVE-2018-5121 is a medium-severity vulnerability in Apple Mac OS X, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2018-06-11.
- How severe is CVE-2018-5121?
- Medium severity. CVSS v3 base score is 5.3 out of 10.