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Origin Validation Error Affecting firefox package, versions <66.0-1

0.0
high

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High

    Threat Intelligence

    EPSS 0.16% (52nd percentile)
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NVD
7.4 high

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-340890
  • published 20 Mar 2019
  • disclosed 26 Apr 2019
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Introduced: 20 Mar 2019

CVE-2019-9803 Open this link in a new tab
CWE-346 Open this link 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.

The Upgrade-Insecure-Requests (UIR) specification states that if UIR is enabled through Content Security Policy (CSP), navigation to a same-origin URL must be upgraded to HTTPS. Firefox will incorrectly navigate to an HTTP URL rather than perform the security upgrade requested by the CSP in some circumstances, allowing for potential man-in-the-middle attacks on the linked resources. This vulnerability affects Firefox < 66.