CVE-2018-5095 : What You Need to Know
Learn about CVE-2018-5095, an integer overflow vulnerability in the Skia library affecting Thunderbird, Firefox ESR, and Firefox. Find out how to mitigate this issue and protect your systems.
A vulnerability in the Skia library leads to an integer overflow issue during memory allocation, affecting Thunderbird, Firefox ESR, and Firefox.
Understanding CVE-2018-5095
This CVE involves an integer overflow vulnerability in the Skia library, impacting various Mozilla products.
What is CVE-2018-5095?
An integer overflow in the Skia library causes memory allocation issues on systems with at least 8 GB of RAM, potentially leading to exploitable crashes.
The Impact of CVE-2018-5095
The vulnerability affects Thunderbird versions older than 52.6, Firefox ESR versions older than 52.6, and Firefox versions older than 58.
Technical Details of CVE-2018-5095
This section provides detailed technical information about the CVE.
Vulnerability Description
The vulnerability arises from an integer overflow in the Skia library during memory allocation for edge builders.
Affected Systems and Versions
- Thunderbird versions less than 52.6
- Firefox ESR versions less than 52.6
- Firefox versions less than 58
Exploitation Mechanism
The issue occurs due to uninitialized memory usage, potentially leading to exploitable crashes.
Mitigation and Prevention
Protective measures to address CVE-2018-5095.
Immediate Steps to Take
- Update Thunderbird, Firefox ESR, and Firefox to versions 52.6 and 58, respectively.
- Monitor vendor advisories for patches and security updates.
Long-Term Security Practices
- Regularly update software to the latest versions.
- Implement security best practices to prevent and detect vulnerabilities.
Patching and Updates
Apply patches provided by Mozilla and other relevant vendors to mitigate the vulnerability.