CVE-2022-42928 : Security Advisory and Response
Learn about CVE-2022-42928, a memory corruption vulnerability affecting Firefox, Firefox ESR, and Thunderbird. Find out the impact, affected versions, and mitigation steps.
This article provides detailed information about CVE-2022-42928, a vulnerability affecting Firefox, Firefox ESR, and Thunderbird.
Understanding CVE-2022-42928
CVE-2022-42928 is a memory corruption vulnerability in the JavaScript engine impacting Firefox, Firefox ESR, and Thunderbird.
What is CVE-2022-42928?
Certain types of allocations were missing annotations that, in a specific state of the Garbage Collector, could lead to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox less than 106, Firefox ESR less than 102.4, and Thunderbird less than 102.4.
The Impact of CVE-2022-42928
The vulnerability could allow an attacker to execute arbitrary code or crash the affected applications, leading to a denial of service condition.
Technical Details of CVE-2022-42928
This section provides technical details about the CVE-2022-42928 vulnerability.
Vulnerability Description
The vulnerability arises from missing annotations in certain allocations, which, under specific conditions, trigger memory corruption.
Affected Systems and Versions
- Firefox: Versions less than 106
- Firefox ESR: Versions less than 102.4
- Thunderbird: Versions less than 102.4
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting malicious web content, causing the applications to process it and potentially leading to memory corruption.
Mitigation and Prevention
To address CVE-2022-42928, follow the mitigation strategies outlined below.
Immediate Steps to Take
- Update Firefox, Firefox ESR, and Thunderbird to the latest versions to mitigate the vulnerability.
- Exercise caution while visiting unknown or untrusted websites to reduce the risk of exposure.
Long-Term Security Practices
- Regularly update your software and applications to ensure you have the latest security patches.
- Implement robust cybersecurity measures to protect your systems and data.
Patching and Updates
Stay informed about security advisories from Mozilla and promptly apply patches to secure your systems against known vulnerabilities.