Cross-site Scripting (XSS) Affecting thunderbird package, versions <0:68.4.1-2.el7_7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.31% (71st percentile)

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  • Snyk IDSNYK-RHEL7-THUNDERBIRD-4910835
  • published26 Jul 2021
  • disclosed7 Jan 2020

Introduced: 7 Jan 2020

CVE-2019-17016  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade RHEL:7 thunderbird to version 0:68.4.1-2.el7_7 or higher.
This issue was patched in RHSA-2020:0120.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

When pasting a &lt;style&gt; tag from the clipboard into a rich text editor, the CSS sanitizer incorrectly rewrites a @namespace rule. This could allow for injection into certain types of websites resulting in data exfiltration. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

CVSS Scores

version 3.1