CVE-2018-19882 : Vulnerability Insights and Analysis
Learn about CVE-2018-19882, a vulnerability in Artifex MuPDF 1.14.0 that allows remote attackers to cause a denial of service via a crafted svg file, potentially leading to a crash. Find mitigation steps and prevention measures here.
Artifex MuPDF 1.14.0's svg_run_image function in svg/svg-run.c is vulnerable to a denial of service attack due to a NULL pointer dereference, potentially leading to a crash.
Understanding CVE-2018-19882
This CVE involves a vulnerability in Artifex MuPDF 1.14.0 that could be exploited by malicious actors to cause a denial of service.
What is CVE-2018-19882?
The svg_run_image function in Artifex MuPDF 1.14.0, specifically in svg/svg-run.c, can be abused by attackers to trigger a denial of service by sending a specially crafted svg file to the application. This manipulation results in a NULL pointer dereference and subsequent application crash, as demonstrated in mupdf-gl.
The Impact of CVE-2018-19882
This vulnerability allows remote attackers to disrupt the normal operation of the application, potentially leading to a crash and denial of service.
Technical Details of CVE-2018-19882
Artifex MuPDF 1.14.0's vulnerability is detailed below:
Vulnerability Description
The svg_run_image function in svg/svg-run.c of Artifex MuPDF 1.14.0 allows remote attackers to exploit a NULL pointer dereference, causing a denial of service through a crafted svg file.
Affected Systems and Versions
- Product: Artifex MuPDF 1.14.0
- Version: Not applicable
Exploitation Mechanism
Attackers can exploit this vulnerability by sending a carefully crafted svg file to the application, triggering a NULL pointer dereference and subsequent crash.
Mitigation and Prevention
To address CVE-2018-19882, consider the following steps:
Immediate Steps to Take
- Apply vendor patches or updates promptly.
- Monitor vendor communications for security advisories.
- Restrict access to vulnerable systems.
Long-Term Security Practices
- Regularly update and patch software to mitigate known vulnerabilities.
- Implement network security measures to detect and prevent exploitation attempts.
Patching and Updates
- Install the latest patches or updates provided by Artifex MuPDF to fix the vulnerability and enhance system security.