CVE-2018-19503 : Security Advisory and Response
Learn about CVE-2018-19503, a stack-based buffer overflow vulnerability in Freeware Advanced Audio Decoder 2 (FAAD2) version 2.8.1. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A problem was detected in the 2.8.1 version of Freeware Advanced Audio Decoder 2 (FAAD2) due to a stack-based buffer overflow in the calculate_gain() function.
Understanding CVE-2018-19503
What is CVE-2018-19503?
CVE-2018-19503 is a vulnerability found in version 2.8.1 of FAAD2, specifically in the calculate_gain() function in libfaad/sbr_hfadj.c.
The Impact of CVE-2018-19503
This vulnerability could allow an attacker to execute arbitrary code or cause a denial of service by exploiting the buffer overflow.
Technical Details of CVE-2018-19503
Vulnerability Description
The issue in FAAD2 2.8.1 is a stack-based buffer overflow in the calculate_gain() function in libfaad/sbr_hfadj.c.
Affected Systems and Versions
- Product: N/A
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
The vulnerability can be exploited by crafting a malicious audio file that triggers the buffer overflow when processed by FAAD2.
Mitigation and Prevention
Immediate Steps to Take
- Disable the processing of untrusted audio files using FAAD2 until a patch is available.
- Implement network-level protections to filter out potentially malicious audio content.
Long-Term Security Practices
- Regularly update FAAD2 to the latest version to patch known vulnerabilities.
- Conduct security assessments and code reviews to identify and address potential buffer overflow issues.
Patching and Updates
Apply the latest security updates and patches provided by the FAAD2 project to mitigate the CVE-2018-19503 vulnerability.