CVE-2019-16115 : What You Need to Know
Learn about CVE-2019-16115, a stack-based buffer under-read vulnerability in Xpdf 4.01.01 that can lead to a Denial of Service attack. Find out how to mitigate risks and prevent exploitation.
A stack-based buffer under-read vulnerability in Xpdf 4.01.01 can lead to a Denial of Service attack or other impacts when exploited through a crafted PDF document.
Understanding CVE-2019-16115
This CVE involves a vulnerability in Xpdf 4.01.01 that can be exploited through a specially crafted PDF document.
What is CVE-2019-16115?
This CVE refers to a stack-based buffer under-read vulnerability in Xpdf 4.01.01, triggered in the IdentityFunction::transform function used by GfxAxialShading::getColor.
The Impact of CVE-2019-16115
Exploiting this vulnerability could result in a Denial of Service attack or other unspecified impacts.
Technical Details of CVE-2019-16115
Xpdf 4.01.01 is affected by this vulnerability.
Vulnerability Description
The vulnerability can be triggered in the IdentityFunction::transform function in the Function.cc file, used by GfxAxialShading::getColor.
Affected Systems and Versions
- Product: Xpdf 4.01.01
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
An attacker can exploit this vulnerability by sending a specially crafted PDF document to the pdftoppm tool.
Mitigation and Prevention
It is crucial to take immediate steps to mitigate the risks posed by CVE-2019-16115.
Immediate Steps to Take
- Update Xpdf to the latest version.
- Avoid opening PDF files from untrusted sources.
Long-Term Security Practices
- Regularly update software and apply security patches.
- Implement network segmentation to limit the impact of potential attacks.
- Educate users on safe browsing habits and the risks associated with opening unknown files.
Patching and Updates
Ensure that Xpdf is regularly updated with the latest security patches to address known vulnerabilities.