CVE-2017-8787 : Vulnerability Insights and Analysis
Learn about CVE-2017-8787, a vulnerability in PoDoFo 0.9.5 that allows remote attackers to trigger a heap-based buffer over-read, potentially leading to a denial of service. Find out how to mitigate and prevent exploitation.
In PoDoFo 0.9.5, a vulnerability exists that can be exploited by remote attackers to trigger a heap-based buffer over-read, potentially leading to a denial of service and other impacts when a maliciously crafted PDF file is used.
Understanding CVE-2017-8787
This CVE entry describes a specific vulnerability in PoDoFo 0.9.5 that can be exploited remotely.
What is CVE-2017-8787?
The vulnerability in PoDoFo 0.9.5 allows remote attackers to exploit a function, leading to a denial of service and other potential impacts when a specially crafted PDF file is utilized.
The Impact of CVE-2017-8787
The exploitation of this vulnerability can result in a heap-based buffer over-read, potentially causing a denial of service and other unspecified impacts when manipulating PDF files.
Technical Details of CVE-2017-8787
This section provides more technical insights into the vulnerability.
Vulnerability Description
The specific function PoDoFo::PdfXRefStreamParserObject::ReadXRefStreamEntry in base/PdfXRefStreamParserObject.cpp:224 is the source of the vulnerability.
Affected Systems and Versions
- Product: PoDoFo 0.9.5
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
The vulnerability can be exploited remotely by manipulating a crafted PDF file to trigger a heap-based buffer over-read.
Mitigation and Prevention
Protecting systems from CVE-2017-8787 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches or updates provided by the vendor.
- Avoid opening PDF files from untrusted or unknown sources.
Long-Term Security Practices
- Regularly update software and applications to the latest versions.
- Implement network security measures to detect and prevent malicious PDF files.
- Educate users on safe browsing practices and the risks associated with opening unknown files.
- Consider using security tools to scan and analyze PDF files for potential threats.
- Monitor security advisories for any new information or patches related to this vulnerability.
Patching and Updates
Ensure that the PoDoFo software is updated to a version that addresses the vulnerability to mitigate the risk of exploitation.