CVE-2017-12921 Explained : Impact and Mitigation
Learn about CVE-2017-12921, a vulnerability in the libfpx library that could be exploited remotely to cause a denial of service condition. Find out how to mitigate the risk and apply necessary patches.
A vulnerability in the PFileFlashPixView::GetGlobalInfoProperty function in the libfpx library could lead to a denial of service attack by remote exploitation.
Understanding CVE-2017-12921
This CVE entry describes a specific vulnerability in the libfpx library that could be exploited remotely to cause a denial of service condition.
What is CVE-2017-12921?
The vulnerability lies in the PFileFlashPixView::GetGlobalInfoProperty function within the f_fpxvw.cpp file of the libfpx 1.3.1_p6 library. Attackers can trigger a NULL pointer dereference by providing a specially crafted fpx image.
The Impact of CVE-2017-12921
Exploitation of this vulnerability could result in a denial of service condition, potentially disrupting the availability of the affected system or service.
Technical Details of CVE-2017-12921
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in PFileFlashPixView::GetGlobalInfoProperty allows remote attackers to trigger a NULL pointer dereference by using a malicious fpx image.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: libfpx 1.3.1_p6
Exploitation Mechanism
Attackers can exploit this vulnerability remotely by supplying a specially crafted fpx image that triggers the NULL pointer dereference.
Mitigation and Prevention
Protecting systems from CVE-2017-12921 requires specific actions to mitigate the risk.
Immediate Steps to Take
- Apply security patches or updates provided by the vendor promptly.
- Implement network security measures to prevent unauthorized access.
- Monitor system logs for any suspicious activities.
Long-Term Security Practices
- Conduct regular security assessments and audits to identify vulnerabilities.
- Educate users and administrators about safe computing practices.
- Keep software and libraries up to date to prevent known vulnerabilities.
Patching and Updates
Ensure that the libfpx library is updated to a secure version that addresses the vulnerability.