CVE - CVE-2017-7764

CVE-ID
CVE-2017-7764	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:http://www.unicode.org/reports/tr31/tr31-26.html#Aspirational_Use_Scripts CONFIRM:https://bugzilla.mozilla.org/show_bug.cgi?id=1364283 CONFIRM:https://www.mozilla.org/security/advisories/mfsa2017-15/ CONFIRM:https://www.mozilla.org/security/advisories/mfsa2017-16/ CONFIRM:https://www.mozilla.org/security/advisories/mfsa2017-17/ DEBIAN:DSA-3881 URL:https://www.debian.org/security/2017/dsa-3881 DEBIAN:DSA-3918 URL:https://www.debian.org/security/2017/dsa-3918 REDHAT:RHSA-2017:1440 URL:https://access.redhat.com/errata/RHSA-2017:1440 REDHAT:RHSA-2017:1561 URL:https://access.redhat.com/errata/RHSA-2017:1561 BID:99057 URL:http://www.securityfocus.com/bid/99057 SECTRACK:1038689 URL:http://www.securitytracker.com/id/1038689
Assigning CNA
Mozilla Corporation
Date Entry Created
20170412	Disclaimer: The entry creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20170412)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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