CVE-2019-16927 : Vulnerability Insights and Analysis
Learn about CVE-2019-16927, an out-of-bounds write vulnerability in Xpdf 4.01.01, distinct from CVE-2019-9877. Find out the impact, affected systems, exploitation, and mitigation steps.
Xpdf 4.01.01 experiences an issue with an out-of-bounds write in the vertProfile section of the TextPage::findGaps function in TextOutputDev.cc. This vulnerability is distinct from CVE-2019-9877.
Understanding CVE-2019-16927
Xpdf 4.01.01 has an out-of-bounds write vulnerability in the vertProfile section of the TextPage::findGaps function in TextOutputDev.cc, which is different from CVE-2019-9877.
What is CVE-2019-16927?
This CVE refers to a specific vulnerability in Xpdf 4.01.01 that allows for an out-of-bounds write in a particular function, potentially leading to security issues.
The Impact of CVE-2019-16927
- The vulnerability could be exploited by attackers to execute arbitrary code or cause a denial of service.
- It may lead to unauthorized access to sensitive information or system compromise.
Technical Details of CVE-2019-16927
Xpdf 4.01.01 is affected by an out-of-bounds write vulnerability in the vertProfile section of the TextPage::findGaps function in TextOutputDev.cc.
Vulnerability Description
The vulnerability allows for unauthorized write access beyond the bounds of the intended buffer, potentially leading to code execution or system instability.
Affected Systems and Versions
- Product: Xpdf 4.01.01
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting a malicious PDF file and enticing a user to open it, triggering the out-of-bounds write in the specified function.
Mitigation and Prevention
It is crucial to take immediate steps to mitigate the risks posed by CVE-2019-16927.
Immediate Steps to Take
- Update Xpdf to a patched version that addresses the out-of-bounds write vulnerability.
- Avoid opening PDF files from untrusted or unknown sources.
Long-Term Security Practices
- Regularly update software and applications to patch known vulnerabilities.
- Implement network security measures to detect and prevent malicious activities.
Patching and Updates
- Stay informed about security updates for Xpdf and apply patches promptly to ensure protection against known vulnerabilities.