Authentication Bypass Affecting thunderbird package, versions <1:78.11.0+build1-0ubuntu2


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.13% (49th percentile)

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  • Snyk IDSNYK-UBUNTU2110-THUNDERBIRD-1737636
  • published26 Mar 2021
  • disclosed31 Mar 2021

Introduced: 26 Mar 2021

CVE-2021-23984  (opens in a new tab)
CWE-290  (opens in a new tab)

How to fix?

Upgrade Ubuntu:21.10 thunderbird to version 1:78.11.0+build1-0ubuntu2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Ubuntu. See How to fix? for Ubuntu:21.10 relevant fixed versions and status.

A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

CVSS Scores

version 3.1