CVE-2020-26967 Affecting firefox package, versions <83.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.08% (37th percentile)

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  • Snyk IDSNYK-ALPINE318-FIREFOX-5514047
  • published4 Dec 2020
  • disclosed9 Dec 2020

Introduced: 4 Dec 2020

CVE-2020-26967  (opens in a new tab)

How to fix?

Upgrade Alpine:3.18 firefox to version 83.0-r0 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 Alpine. See How to fix? for Alpine:3.18 relevant fixed versions and status.

When listening for page changes with a Mutation Observer, a malicious web page could confuse Firefox Screenshots into interacting with elements other than those that it injected into the page. This would lead to internal errors and unexpected behavior in the Screenshots code. This vulnerability affects Firefox < 83.

CVSS Scores

version 3.1