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CVE-2017-5383

Published: 25 January 2017

URLs containing certain unicode glyphs for alternative hyphens and quotes do not properly trigger punycode display, allowing for domain name spoofing attacks in the location bar. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.

Priority

Medium

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
upstream
Released (51)
precise
Released (51.0.1+build2-0ubuntu0.12.04.1)
xenial
Released (51.0.1+build2-0ubuntu0.16.04.1)
yakkety
Released (51.0.1+build2-0ubuntu0.16.10.1)
zesty
Released (52.0.1+build2-0ubuntu1)
trusty
Released (51.0.1+build2-0ubuntu0.14.04.1)
thunderbird
Launchpad, Ubuntu, Debian
upstream Needs triage

precise
Released (1:45.7.0+build1-0ubuntu0.12.04.1)
xenial
Released (1:45.7.0+build1-0ubuntu0.16.04.1)
yakkety
Released (1:45.7.0+build1-0ubuntu0.16.10.1)
zesty
Released (1:45.7.0+build1-0ubuntu1)
trusty
Released (1:45.7.0+build1-0ubuntu0.14.04.1)

Severity score breakdown

Parameter Value
Base score 5.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N