CVE-2017-7838

firefox: Punycode format text will be displayed for entire qualified international domain names in some instances when a sub-d...

CVE-2017-7838 is fixed in 4 products on 1 platform, first by firefox 57.0.1+build2-0ubuntu1, released June 11, 2018. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
Low
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0144
73rd percentile

Punycode format text will be displayed for entire qualified international domain names in some instances when a sub-domain triggers the punycode display instead of the primary domain being displayed in native script and the sub-domain only displaying as punycode. This could be used for limited spoofing attacks due to user confusion. This vulnerability affects Firefox < 57.

Where it's fixed

ProductFixed inFixReleased
Linux
firefox · Ubuntu 18.04.6 LTS (bionic) 57.0.1+build2-0ubuntu1 firefox 57.0.1+build2-0ubuntu1 Jun 11, 2018
firefox-globalmenu · Ubuntu 18.04.6 LTS (bionic) 57.0.1+build2-0ubuntu1 firefox-globalmenu 57.0.1+build2-0ubuntu1 Jun 11, 2018
firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) 57.0.1+build2-0ubuntu1 firefox-mozsymbols 57.0.1+build2-0ubuntu1 Jun 11, 2018
firefox-testsuite · Ubuntu 18.04.6 LTS (bionic) 57.0.1+build2-0ubuntu1 firefox-testsuite 57.0.1+build2-0ubuntu1 Jun 11, 2018

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