CVE-2018-18662 : Vulnerability Insights and Analysis
Learn about CVE-2018-18662, an out-of-bounds read vulnerability in Artifex MuPDF version 1.14.0, potentially leading to information disclosure or denial of service. Find mitigation steps and preventive measures here.
An out-of-bounds read vulnerability was discovered in the function fz_run_t3_glyph() in the file font.c of Artifex MuPDF version 1.14.0, as demonstrated by mutool.
Understanding CVE-2018-18662
This CVE entry describes a specific vulnerability in Artifex MuPDF version 1.14.0.
What is CVE-2018-18662?
The vulnerability involves an out-of-bounds read in the function fz_run_t3_glyph() within the font.c file of Artifex MuPDF version 1.14.0. It has been exploited using mutool.
The Impact of CVE-2018-18662
The vulnerability could potentially allow an attacker to read beyond the boundaries of allocated memory, leading to information disclosure or a denial of service.
Technical Details of CVE-2018-18662
This section provides more technical insights into the CVE.
Vulnerability Description
The vulnerability exists in the function fz_run_t3_glyph() in the font.c file of Artifex MuPDF version 1.14.0, allowing for an out-of-bounds read.
Affected Systems and Versions
- Affected Product: Artifex MuPDF
- Affected Version: 1.14.0
Exploitation Mechanism
The vulnerability has been demonstrated using mutool, showcasing the potential for exploitation.
Mitigation and Prevention
Protective measures and actions to address CVE-2018-18662.
Immediate Steps to Take
- Update Artifex MuPDF to a patched version if available.
- Monitor security advisories for any official fixes or workarounds.
Long-Term Security Practices
- Regularly update software to the latest versions to mitigate known vulnerabilities.
- Implement proper input validation and boundary checks in software development.
Patching and Updates
- Apply patches or security updates provided by Artifex MuPDF promptly to address the vulnerability.