Description
Several fonts on OS X display some Tibetan and Arabic characters as whitespace. When used in the addressbar as part of an 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 < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
References (9)
Core 9
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/101059
Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-22/
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1393624
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1039465
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-21/
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1390980
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-23/
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201803-14
Scores
CVSS v3
5.3
EPSS
0.0171
EPSS Percentile
82.6%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Details
CWE
CWE-20
Status
published
Products (3)
debian/debian_linux
7.0
mozilla/firefox
< 52.4.0
mozilla/thunderbird
< 52.4.0
Published
Jun 11, 2018
Tracked Since
Feb 18, 2026