CVE-2019-11758 : Security Advisory and Response
Discover the impact of CVE-2019-11758, a memory safety bug in Firefox 68 allowing potential arbitrary code execution. Learn about affected versions and mitigation steps.
A memory safety issue in Firefox version 68, reported by a Mozilla community member, could lead to memory corruption and potential arbitrary code execution.
Understanding CVE-2019-11758
What is CVE-2019-11758?
This CVE refers to a memory safety bug in Firefox 68 that could allow attackers to execute arbitrary code.
The Impact of CVE-2019-11758
The vulnerability affects Firefox versions before 69, Thunderbird versions before 68.2, and Firefox ESR versions before 68.2.
Technical Details of CVE-2019-11758
Vulnerability Description
The bug causes memory corruption in the accessibility engine, potentially enabling attackers to run arbitrary code.
Affected Systems and Versions
- Firefox versions before 69
- Thunderbird versions before 68.2
- Firefox ESR versions before 68.2
Exploitation Mechanism
Attackers can exploit this vulnerability to execute arbitrary code with sufficient effort.
Mitigation and Prevention
Immediate Steps to Take
- Update Firefox, Thunderbird, and Firefox ESR to versions 69, 68.2, and 68.2 respectively.
- Avoid installing untrusted software that may trigger memory safety issues.
Long-Term Security Practices
- Regularly update software to patch known vulnerabilities.
- Implement robust security measures to prevent arbitrary code execution.
Patching and Updates
Apply security patches provided by Mozilla to address the memory safety issue.