CVE-2018-18064 : Exploit Details and Defense Strategies
Learn about CVE-2018-18064 affecting Cairo versions from 1.15.14 onwards. Discover the impact, technical details, affected systems, exploitation mechanism, and mitigation steps.
CVE-2018-18064 was published on October 8, 2018, and affects Cairo versions from 1.15.14 onwards. The vulnerability involves a stack-memory write issue when processing a custom document with WebKitGTK+ due to specific interactions within Cairo components.
Understanding CVE-2018-18064
This CVE entry highlights a security vulnerability in Cairo versions starting from 1.15.14.
What is CVE-2018-18064?
Cairo versions from 1.15.14 onwards are susceptible to a stack-memory write issue triggered when processing a custom document with WebKitGTK+. The vulnerability arises from the interaction between two components: cairo-rectangular-scan-converter.c (specifically the generate and render_rows functions) and cairo-image-compositor.c (specifically the _cairo_image_spans_and_zero function).
The Impact of CVE-2018-18064
The vulnerability can be exploited to execute arbitrary code or cause a denial of service (DoS) attack on systems running the affected Cairo versions.
Technical Details of CVE-2018-18064
This section provides technical insights into the vulnerability.
Vulnerability Description
The issue involves an out-of-bounds stack-memory write during the processing of a crafted document by WebKitGTK+ due to specific interactions within Cairo components.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: All versions from 1.15.14 onwards are affected.
Exploitation Mechanism
The vulnerability can be exploited by crafting a malicious document that triggers the stack-memory write issue when processed by WebKitGTK+.
Mitigation and Prevention
To address CVE-2018-18064, follow these mitigation strategies:
Immediate Steps to Take
- Apply security patches provided by the vendor.
- Consider implementing network-level protections to detect and block exploit attempts.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Conduct security assessments and code reviews to identify and address vulnerabilities proactively.
Patching and Updates
- Stay informed about security advisories and updates from Cairo to apply patches promptly.