Bug 846590 (CVE-2022-1529, CVE-2022-1802)

Summary:	[Tracker] Vulnerabilities in Mozilla products
Product:	Gentoo Security	Reporter:	John Helmert III <ajak>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://www.mozilla.org/en-US/security/advisories/mfsa2022-19/
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:	846593, 846596
Bug Blocks:

Description John Helmert III archtester

2022-05-20 16:12:06 UTC

CVE-2022-1802:

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.

CVE-2022-1529:

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.