Information Exposure Affecting firefox package, versions <77.0-1
Snyk CVSS
Attack Complexity
Low
User Interaction
Required
Confidentiality
High
Threat Intelligence
EPSS
0.17% (53rd
percentile)
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-570859
- published 2 Jun 2020
- disclosed 9 Jul 2020
Introduced: 2 Jun 2020
CVE-2020-12407 Open this link in a new tabHow to fix?
Upgrade Debian:unstable firefox to version 77.0-1 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 Debian.
See How to fix? for Debian:unstable 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.