Loop with Unreachable Exit Condition ('Infinite Loop') Affecting firefox package, versions <79.0-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.41% (75th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOX-595838
  • published29 Jul 2020
  • disclosed10 Aug 2020

Introduced: 29 Jul 2020

CVE-2020-15654  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firefox to version 79.0-1 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.

When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user is interacting with the user interface, when they are not. This could lead to a perceived broken state, especially when interactions with existing browser dialogs and warnings do not work. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

CVSS Scores

version 3.1