CVE-2017-7833

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
mozillaCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 78%
VendorProductVersion
mozillafirefox
𝑥
≤ 56.0.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
132.0.1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
firefox
bionic
Fixed 57.0.1+build2-0ubuntu1
released
artful
Fixed 57.0+build4-0ubuntu0.17.10.5
released
zesty
Fixed 57.0+build4-0ubuntu0.17.04.5
released
xenial
Fixed 57.0+build4-0ubuntu0.16.04.5
released
trusty
Fixed 57.0+build4-0ubuntu0.14.04.4
released
Common Weakness Enumeration
References
http://www.securityfocus.com/bid/101832
http://www.securitytracker.com/id/1039803
https://bugzilla.mozilla.org/show_bug.cgi?id=1370497
https://www.mozilla.org/security/advisories/mfsa2017-24/
http://www.securityfocus.com/bid/101832
http://www.securitytracker.com/id/1039803
https://bugzilla.mozilla.org/show_bug.cgi?id=1370497
https://www.mozilla.org/security/advisories/mfsa2017-24/