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

http://www.securityfocus.com/bid/101059

http://www.securitytracker.com/id/1039465

https://bugzilla.mozilla.org/show_bug.cgi?id=1390980

https://bugzilla.mozilla.org/show_bug.cgi?id=1393624

https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html

https://security.gentoo.org/glsa/201803-14

https://www.mozilla.org/security/advisories/mfsa2017-21/

https://www.mozilla.org/security/advisories/mfsa2017-22/

https://www.mozilla.org/security/advisories/mfsa2017-23/

Details

Risk Information

CVSS v2

CVSS v3