CVE-2018-12371 Explained : Impact and Mitigation
Learn about CVE-2018-12371, an integer overflow flaw in the Skia library affecting Firefox ESR, Thunderbird, and Firefox versions. Find mitigation steps and updates here.
A vulnerability in the Skia library affecting Firefox ESR, Thunderbird, and Firefox versions.
Understanding CVE-2018-12371
What is CVE-2018-12371?
An integer overflow in the Skia library during memory allocation, leading to potential crashes and exploitation.
The Impact of CVE-2018-12371
The vulnerability affects Firefox ESR versions prior to 60.1, Thunderbird versions prior to 60, and Firefox versions prior to 61.
Technical Details of CVE-2018-12371
Vulnerability Description
The flaw in the Skia library causes an integer overflow during memory allocation for edge builders, potentially leading to crashes and exploitation.
Affected Systems and Versions
- Firefox ESR versions prior to 60.1
- Thunderbird versions prior to 60
- Firefox versions prior to 61
Exploitation Mechanism
Uninitialized memory usage due to integer overflow can result in exploitable crashes.
Mitigation and Prevention
Immediate Steps to Take
- Update affected software to versions 60.1 for Firefox ESR, 60 for Thunderbird, and 61 for Firefox.
- Monitor vendor security advisories for patches.
Long-Term Security Practices
- Regularly update software to the latest versions.
- Implement security best practices to prevent memory-related vulnerabilities.
Patching and Updates
Apply patches provided by Mozilla to address the Skia library vulnerability.