CVE-2017-7764
CVSS V2 Medium 5
CVSS V3 Medium 5.3
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.
Overview
- CVE ID
- CVE-2017-7764
- Assigner
- security@mozilla.org
- Vulnerability Status
- Analyzed
- Published Version
- 2018-06-11T21:29:08
- Last Modified Date
- 2018-08-13T19:37:53
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | 1 | OR | 54.0 | |
| cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* | 1 | OR | 52.2.0 | |
| cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | 1 | OR | 52.2.0 | |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5.3
- Base Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://www.mozilla.org/security/advisories/mfsa2017-17/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2017-16/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2017-15/ | Vendor Advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1364283 | Exploit Issue Tracking Vendor Advisory |
| http://www.unicode.org/reports/tr31/tr31-26.html#Aspirational_Use_Scripts | Third Party Advisory |
| https://www.debian.org/security/2017/dsa-3918 | Third Party Advisory |
| https://www.debian.org/security/2017/dsa-3881 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:1561 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:1440 | Third Party Advisory |
| http://www.securitytracker.com/id/1038689 | Third Party Advisory VDB Entry |
| http://www.securityfocus.com/bid/99057 | Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2017-7764 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7764 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 18:39:39 | Added to TrackCVE | |||
| 2022-12-03 07:46:50 | 2018-06-11T21:29Z | 2018-06-11T21:29:08 | CVE Published Date | updated |
| 2022-12-03 07:46:50 | 2018-08-13T19:37:53 | CVE Modified Date | updated | |
| 2022-12-03 07:46:50 | Analyzed | Vulnerability Status | updated |