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Missing Authorization Affecting firefox package, versions <86.0-1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Integrity High

    Threat Intelligence

    EPSS 0.09% (39th percentile)
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NVD
6.5 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-1078684
  • published 24 Feb 2021
  • disclosed 26 Feb 2021
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Introduced: 24 Feb 2021

CVE-2021-23975 Open this link in a new tab
CWE-862 Open this link in a new tab

How to fix?

Upgrade Debian:unstable firefox to version 86.0-1 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.

The developer page about:memory has a Measure function for exploring what object types the browser has allocated and their sizes. When this function was invoked we incorrectly called the sizeof function, instead of using the API method that checks for invalid pointers. This vulnerability affects Firefox < 86.