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CVE-2017-7833

Date: June 11, 2018

Some Arabic and Indic vowel marker characters can be combined with Latin characters in a domain name to eclipse the non-Latin character with some font sets on the addressbar. The non-Latin character will not be visible to most viewers. This allows for domain spoofing attacks because these combined domain names do not display as punycode. This vulnerability affects Firefox < 57.

Language: Unix

Severity Score

Related Resources (7)

https://www.mozilla.org/security/advisories/mfsa2017-24/
http://www.securitytracker.com/id/1039803
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-7833
http://www.securityfocus.com/bid/101832
https://bugzilla.mozilla.org/show_bug.cgi?id=1370497
https://nvd.nist.gov/vuln/detail/CVE-2017-7833
https://www.mend.io/vulnerability-database/CVE-2017-7833

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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