CVE-2017-7764

CVE Details

Release Date:

2018-06-11

Description

Characters from the Canadian Syllabics unicode block can be mixedwith 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.

See more information about CVE-2017-7764 from MITRE CVE dictionary and NIST NVD

CVSS v2.0 metrics

NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.

Base Score:	5	Base Metrics:	AV:N/AC:L/Au:N/C:N/I:P/A:N
Access Vector:	Network	Attack Complexity:	Low
Authentication:	None required	Confidentiality Impact:	None
Integrity Impact:	Partial	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (firefox)	ELSA-2017-1440	2017-06-14
Oracle Linux version 6 (thunderbird)	ELSA-2017-1561	2017-06-21
Oracle Linux version 7 (firefox)	ELSA-2017-1440	2017-06-14
Oracle Linux version 7 (thunderbird)	ELSA-2017-1561	2017-06-21

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team