Characters from the "Canadian Syllabics" unicode block can be mixed with characters from other unicode blocks in the addressbar instead of being rendered as their raw "punycode" form, allowing for domain name spoofing attacks through character confusion. The current Unicode standard allows characters from "Aspirational Use Scripts" such as Canadian Syllabics to be mixed with Latin characters in the "moderately restrictive" IDN profile. We have changed Firefox behavior to match the upcoming Unicode version 10.0 which removes this category and treats them as "Limited Use Scripts.". This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mozilla
Published: 2018-06-11T21:00:00
Updated: 2024-08-05T16:12:28.412Z
Reserved: 2017-04-12T00:00:00
Link: CVE-2017-7764
Vulnrichment
No data.
NVD
Status : Modified
Published: 2018-06-11T21:29:08.437
Modified: 2024-11-21T03:32:36.937
Link: CVE-2017-7764
Redhat