CVE-2019-13286 Explained : Impact and Mitigation
Learn about CVE-2019-13286 affecting Xpdf 4.01.01, allowing a heap-based buffer over-read in JBIG2Stream::readTextRegionSeg(). Exploiting this vulnerability may disclose sensitive information.
Xpdf 4.01.01 has a vulnerability in the JBIG2Stream::readTextRegionSeg() function that can lead to a heap-based buffer over-read. This issue can be exploited by sending a malicious PDF document to the pdftoppm tool, potentially resulting in the disclosure of sensitive information by an attacker.
Understanding CVE-2019-13286
Xpdf 4.01.01 vulnerability in the JBIG2Stream::readTextRegionSeg() function
What is CVE-2019-13286?
This CVE refers to a vulnerability in Xpdf 4.01.01 that allows a heap-based buffer over-read in the JBIG2Stream::readTextRegionSeg() function, triggered by a crafted PDF document.
The Impact of CVE-2019-13286
Exploiting this vulnerability may lead to the disclosure of sensitive information by an attacker who can send a malicious PDF document to the pdftoppm tool.
Technical Details of CVE-2019-13286
Xpdf 4.01.01 vulnerability technical details
Vulnerability Description
The vulnerability in Xpdf 4.01.01 occurs in the JBIG2Stream::readTextRegionSeg() function, resulting in a heap-based buffer over-read.
Affected Systems and Versions
- Product: n/a
- Vendor: n/a
- Version: n/a
Exploitation Mechanism
The vulnerability can be exploited by sending a malicious PDF document to the pdftoppm tool.
Mitigation and Prevention
Mitigation strategies for CVE-2019-13286
Immediate Steps to Take
- Apply vendor patches or updates promptly.
- Avoid opening PDF files from untrusted sources.
- Monitor vendor advisories for security patches.
Long-Term Security Practices
- Regularly update software and applications.
- Implement network security measures to detect and prevent malicious PDF files.
Patching and Updates
- Check for and apply patches provided by Xpdf or relevant vendors.