CVE-2019-14289 : Exploit Details and Defense Strategies
Discover the Xpdf version 4.01.01 integer overflow issue in JBIG2Bitmap::combine function. Learn about the impact, affected systems, exploitation, and mitigation steps.
In Xpdf version 4.01.01, an integer overflow issue has been identified in the JBIG2Bitmap::combine function within the JBIG2Stream.cc file, particularly in scenarios involving 'multiple bytes per line'.
Understanding CVE-2019-14289
What is CVE-2019-14289?
This CVE refers to an integer overflow vulnerability in Xpdf version 4.01.01, specifically in the JBIG2Bitmap::combine function.
The Impact of CVE-2019-14289
The vulnerability could potentially allow an attacker to execute arbitrary code or cause a denial of service by exploiting the integer overflow issue.
Technical Details of CVE-2019-14289
Vulnerability Description
The problem lies in an integer overflow within the JBIG2Bitmap::combine function in Xpdf version 4.01.01, affecting scenarios with 'multiple bytes per line'.
Affected Systems and Versions
- Product: Xpdf
- Vendor: N/A
- Version: 4.01.01
Exploitation Mechanism
The vulnerability can be exploited by an attacker to trigger the integer overflow issue, potentially leading to arbitrary code execution or denial of service.
Mitigation and Prevention
Immediate Steps to Take
- Update Xpdf to a patched version that addresses the integer overflow vulnerability.
- Avoid opening untrusted PDF files to mitigate the risk of exploitation.
Long-Term Security Practices
- Regularly update software and applications to the latest secure versions.
- Implement network security measures to detect and prevent exploitation attempts.
Patching and Updates
Ensure timely installation of security patches and updates for Xpdf to address known vulnerabilities.