CVE-2018-5153 : Security Advisory and Response
Learn about CVE-2018-5153, a vulnerability in Firefox < 60 allowing corruption of binary data in websocket messages, potentially leading to out-of-bounds reads and data leakage. Find mitigation steps and preventive measures here.
A vulnerability in Firefox versions prior to 60 could allow corruption of binary data in websocket messages, leading to potential out-of-bounds reads.
Understanding CVE-2018-5153
What is CVE-2018-5153?
The presence of mixed textual and binary data in a single websocket message in Firefox versions before 60 could result in memory corruption and out-of-bounds reads.
The Impact of CVE-2018-5153
This vulnerability could be exploited to trigger out-of-bounds reads, potentially leaking sensitive information or causing denial of service.
Technical Details of CVE-2018-5153
Vulnerability Description
Sending mixed text and binary data in a single websocket message in Firefox < 60 can corrupt binary data, leading to out-of-bounds reads.
Affected Systems and Versions
- Product: Firefox
- Vendor: Mozilla
- Versions Affected: < 60
Exploitation Mechanism
The vulnerability arises from the mishandling of mixed content websocket messages, allowing for memory corruption and potential data leakage.
Mitigation and Prevention
Immediate Steps to Take
- Update Firefox to version 60 or newer to mitigate the vulnerability.
- Avoid opening untrusted websocket connections.
Long-Term Security Practices
- Regularly update browsers and software to the latest versions.
- Implement network security measures to detect and prevent malicious websocket traffic.
Patching and Updates
Apply security patches and updates provided by Mozilla to address the vulnerability.