CVE-2018-6542 : Vulnerability Insights and Analysis
Learn about CVE-2018-6542, a bus error vulnerability in ZZIPlib 0.13.67 due to misaligned address loading. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
This CVE-2018-6542 article provides insights into a bus error vulnerability in ZZIPlib 0.13.67 due to misaligned address loading.
Understanding CVE-2018-6542
What is CVE-2018-6542?
A bus error occurs in ZZIPlib 0.13.67 due to misaligned address loading when handling a disk64_trailer seek value in the zzip_disk_findfirst function of zzip/mmapped.c.
The Impact of CVE-2018-6542
This vulnerability can lead to system crashes, denial of service, or potentially arbitrary code execution.
Technical Details of CVE-2018-6542
Vulnerability Description
In ZZIPlib 0.13.67, a bus error is triggered by loading a misaligned address in the zzip_disk_findfirst function.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
The vulnerability is exploited by manipulating the disk64_trailer seek value in the zzip_disk_findfirst function.
Mitigation and Prevention
Immediate Steps to Take
- Apply patches or updates provided by the vendor.
- Monitor vendor communications for security advisories.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Implement secure coding practices to prevent memory-related errors.
Patching and Updates
Ensure that ZZIPlib is updated to a patched version that addresses the bus error vulnerability.