CVE-2017-7764: Input Validation
First published: Tue Jun 13 2017(Updated: )
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."
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Thunderbird | <52.2 | 52.2 |
| <54 | 54 | |
| <52.2 | 52.2 | |
| <52.2 | 52.2 | |
| Mozilla Firefox | <54.0 | |
| Mozilla Firefox ESR | <52.2.0 | |
| Mozilla Thunderbird | <52.2.0 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| debian/firefox | 118.0.2-1 | |
| debian/firefox-esr | 91.12.0esr-1~deb10u1 115.3.1esr-1~deb10u1 102.15.0esr-1~deb11u1 115.3.1esr-1~deb11u1 102.15.1esr-1~deb12u1 115.3.0esr-1~deb12u1 115.3.0esr-1 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1364283
- http://www.unicode.org/reports/tr31/tr31-26.html#Aspirational_Use_Scripts
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-17/
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-15/
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-16/
- http://www.securityfocus.com/bid/99057
- http://www.securitytracker.com/id/1038689
- https://access.redhat.com/errata/RHSA-2017:1440
- https://access.redhat.com/errata/RHSA-2017:1561
- https://www.debian.org/security/2017/dsa-3881
- https://www.debian.org/security/2017/dsa-3918
- https://www.mozilla.org/security/advisories/mfsa2017-15/
- https://www.mozilla.org/security/advisories/mfsa2017-16/
- https://www.mozilla.org/security/advisories/mfsa2017-17/
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-16/#CVE-2017-7764
- https://bugzilla.redhat.com/show_bug.cgi?id=1461262
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-15/#CVE-2017-7764
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-17/#CVE-2017-7764
- https://security-tracker.debian.org/tracker/CVE-2017-7764
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2017-5472
- CVE-2017-7749
- CVE-2017-7750
- CVE-2017-7751
- CVE-2017-7755
- CVE-2017-7752
- CVE-2017-7754
- CVE-2017-7756
- CVE-2017-7757
- CVE-2017-7778
- CVE-2017-7758
- CVE-2017-7763
- CVE-2017-7764
- CVE-2017-7765
- CVE-2017-5470
- CVE-2017-7760
- CVE-2017-7761
- CVE-2017-7766
- CVE-2017-7767
- CVE-2017-7768
- CVE-2017-7759
- CVE-2017-7762
- CVE-2017-7770
- CVE-2017-5471
- collector/security-tracker-debian
- collector/mozilla-advisory
- agent/type
- agent/last-modified-date
- agent/first-publish-date
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2017-7764
- agent/softwarecombine
- source/Mozilla
- agent/software-canonical-lookup
- agent/weakness
- agent/references
- agent/severity
- agent/author
- agent/event
- agent/description
- agent/software-canonical-lookup-request
- agent/tags
- collector/nvd-index
- collector/mitre-cve
- source/MITRE
- package-manager/debian
- vendor/mozilla
- canonical/mozilla thunderbird
- canonical/mozilla firefox esr
- canonical/mozilla firefox
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/8.0
- version/debian debian linux/9.0