Information Exposure Affecting firefox package, versions <77.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.17% (54th percentile)

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  • Snyk IDSNYK-ALPINE318-FIREFOX-5513745
  • published21 Jul 2020
  • disclosed9 Jul 2020

Introduced: 9 Jul 2020

CVE-2020-12407  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Alpine:3.18 firefox to version 77.0-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.

Mozilla Developer Nicolas Silva found that when using WebRender, Firefox would under certain conditions leak arbitrary GPU memory to the visible screen. The leaked memory content was visible to the user, but not observable from web content. This vulnerability affects Firefox < 77.

CVSS Scores

version 3.1