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Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') Affecting firefox-esr package, versions <91.9.1esr-1~deb10u1

0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.25% (65th percentile)
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NVD
8.8 high
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SUSE
7.5 high
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Red Hat
8.8 high

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  • Snyk ID SNYK-DEBIAN10-FIREFOXESR-2841214
  • published 21 May 2022
  • disclosed 22 Dec 2022
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Introduced: 21 May 2022

CVE-2022-1802 Open this link in a new tab
CWE-1321 Open this link in a new tab

How to fix?

Upgrade Debian:10 firefox-esr to version 91.9.1esr-1~deb10u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

If an attacker was able to corrupt the methods of an Array object in JavaScript via prototype pollution, they could have achieved execution of attacker-controlled JavaScript code in a privileged context. This vulnerability affects Firefox ESR < 91.9.1, Firefox < 100.0.2, Firefox for Android < 100.3.0, and Thunderbird < 91.9.1.