Improper Input Validation Affecting firefox package, versions <57.0+build4-0ubuntu0.16.04.5


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.26% (66th percentile)

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  • Snyk IDSNYK-UBUNTU1604-FIREFOX-422506
  • published11 Jun 2018
  • disclosed11 Jun 2018

Introduced: 11 Jun 2018

CVE-2017-7838  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 firefox to version 57.0+build4-0ubuntu0.16.04.5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

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.