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

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Integrity High

    Threat Intelligence

    EPSS 0.33% (71st percentile)
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NVD
6.5 medium
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SUSE
4.2 medium
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Red Hat
6.5 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-595838
  • published 29 Jul 2020
  • disclosed 10 Aug 2020
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Introduced: 29 Jul 2020

CVE-2020-15654 Open this link in a new tab
CWE-835 Open this link 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.