CVE-2017-18245 : What You Need to Know
Learn about CVE-2017-18245, a denial of service vulnerability in Libav 12.2 triggered by a crafted audio file. Find out how to mitigate and prevent exploitation of this heap-based buffer over-read issue.
A denial of service vulnerability in Libav 12.2 due to a crafted audio file.
Understanding CVE-2017-18245
What is CVE-2017-18245?
The vulnerability lies in the mpc8_probe function in Libav 12.2, allowing remote attackers to trigger a denial of service via a specially crafted audio file.
The Impact of CVE-2017-18245
Exploitation of this vulnerability can lead to a heap-based buffer over-read, potentially causing a denial of service condition when the affected function is accessed remotely by attackers.
Technical Details of CVE-2017-18245
Vulnerability Description
A crafted audio file can trigger a denial of service vulnerability (heap-based buffer over-read) in the mpc8_probe function within the libavformat/mpc8.c file of Libav 12.2.
Affected Systems and Versions
- Product: N/A
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
Attackers can exploit this vulnerability remotely by using a specially crafted audio file to trigger the heap-based buffer over-read.
Mitigation and Prevention
Immediate Steps to Take
- Apply the security update provided by Libav to address the vulnerability.
- Avoid opening audio files from untrusted or unknown sources.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Implement network security measures to prevent unauthorized access.
Patching and Updates
- Stay informed about security updates and patches released by Libav to protect against known vulnerabilities.