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

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-DEBIANUNSTABLE-FIREFOXESR-2841215
  • 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:unstable firefox-esr to version 91.9.1esr-1 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:unstable 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.