Privilege Escalation in Firefox DOM Content Processes

Executive Summary

This is a privilege escalation vulnerability in the DOM Content Processes component of Firefox. It allows an attacker to gain higher privileges than intended, potentially executing malicious code with elevated permissions.

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Detection Guidance

This vulnerability is specific to Firefox versions before 153 and Firefox ESR before 140.13. Detection involves checking installed Firefox versions. Use commands like 'firefox --version' or 'apt list --installed | grep firefox' on Linux. Compare the output against the fixed versions.

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Impact Analysis

If exploited, this vulnerability could allow an attacker to take control of your system, install malware, or access sensitive data. Users of affected Firefox versions should update immediately to mitigate the risk.

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Mitigation Strategies

Update Firefox to version 153 or later and Firefox ESR to version 140.13 or later to address the privilege escalation vulnerability in the DOM Content Processes component.

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