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Bug 846590 (CVE-2022-1529, CVE-2022-1802) - [Tracker] Vulnerabilities in Mozilla products
Summary: [Tracker] Vulnerabilities in Mozilla products
Alias: CVE-2022-1529, CVE-2022-1802
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Security
Depends on: 846593 846596
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Reported: 2022-05-20 16:12 UTC by John Helmert III
Modified: 2022-05-20 16:16 UTC (History)
0 users

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Runtime testing required: ---


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Description John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2022-05-20 16:12:06 UTC

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.


An attacker could have sent a message to the parent process where the contents were used to double-index into a JavaScript object, leading to prototype pollution and ultimately attacker-controlled JavaScript executing in the privileged parent process.