Improper Input Validation Affecting firefox package, versions <66.0-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.11% (46th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOX-340859
  • published20 Mar 2019
  • disclosed26 Apr 2019

Introduced: 20 Mar 2019

CVE-2019-9807  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firefox to version 66.0-1 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 Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

When arbitrary text is sent over an FTP connection and a page reload is initiated, it is possible to create a modal alert message with this text as the content. This could potentially be used for social engineering attacks. This vulnerability affects Firefox < 66.