CVE-2017-5428 : Security Advisory and Response
Learn about CVE-2017-5428, an integer overflow vulnerability in the "createImageBitmap()" function affecting Firefox ESR and Firefox versions prior to 52.0.1. Find out how to mitigate and prevent exploitation.
A participant of the Pwn2Own contest reported an integer overflow vulnerability in the "createImageBitmap()" function affecting Firefox versions prior to 52.0.1 for both Firefox ESR and regular Firefox.
Understanding CVE-2017-5428
What is CVE-2017-5428?
An integer overflow in the "createImageBitmap()" function was reported through the Pwn2Own contest. The vulnerability impacts Firefox ESR and Firefox versions prior to 52.0.1.
The Impact of CVE-2017-5428
The vulnerability requires a second exploit to compromise a user's computer due to the function operating within the content sandbox.
Technical Details of CVE-2017-5428
Vulnerability Description
The vulnerability is caused by an integer overflow in the "createImageBitmap()" function.
Affected Systems and Versions
- Product: Firefox ESR
- Vendor: Mozilla
- Versions Affected: < 52.0.1
- Product: Firefox
- Vendor: Mozilla
- Versions Affected: < 52.0.1
Exploitation Mechanism
The vulnerability can be exploited by leveraging the integer overflow in the "createImageBitmap()" function.
Mitigation and Prevention
Immediate Steps to Take
- Update Firefox to version 52.0.1 or later to mitigate the vulnerability.
- Avoid visiting untrusted websites or clicking on suspicious links.
Long-Term Security Practices
- Regularly update your browser and other software to the latest versions.
- Implement strong security measures on your system to prevent exploitation.
Patching and Updates
Apply security patches provided by Mozilla to address the vulnerability.