Incorrect Authorization Affecting firefox package, versions <89.0+build2-0ubuntu0.21.04.1


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.08% (35th percentile)

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  • Snyk IDSNYK-UBUNTU2104-FIREFOX-1298907
  • published3 Jun 2021
  • disclosed24 Jun 2021

Introduced: 3 Jun 2021

CVE-2021-29961  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade Ubuntu:21.04 firefox to version 89.0+build2-0ubuntu0.21.04.1 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 Ubuntu. See How to fix? for Ubuntu:21.04 relevant fixed versions and status.

When styling and rendering an oversized &lt;select&gt; element, Firefox did not apply correct clipping which allowed an attacker to paint over the user interface. This vulnerability affects Firefox < 89.

CVSS Scores

version 3.1