CVE-2019-6956 Explained : Impact and Mitigation

CVE-2019-6956 was published on January 25, 2019, and affects version 2.8.8 of Freeware Advanced Audio Decoder 2 (FAAD2). The vulnerability involves a buffer over-read in the ps_mix_phase function.

Understanding CVE-2019-6956

This CVE entry identifies a specific security issue in FAAD2 version 2.8.8.

What is CVE-2019-6956?

CVE-2019-6956 is a buffer over-read vulnerability found in the ps_mix_phase function within the libfaad/ps_dec.c file of FAAD2 version 2.8.8.

The Impact of CVE-2019-6956

The vulnerability could potentially allow attackers to read beyond the allocated memory buffer, leading to information exposure or a denial of service (DoS) condition.

Technical Details of CVE-2019-6956

This section delves into the technical aspects of the CVE.

Vulnerability Description

The issue in FAAD2 version 2.8.8 involves a buffer over-read within the ps_mix_phase function, which could be exploited by malicious actors.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Version: 2.8.8 (affected)

Exploitation Mechanism

The vulnerability arises due to improper handling of memory buffers in the ps_mix_phase function, potentially allowing attackers to manipulate the buffer and execute malicious code.

Mitigation and Prevention

Protecting systems from CVE-2019-6956 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Monitor security advisories for updates related to FAAD2.

Long-Term Security Practices

Implement secure coding practices to prevent buffer over-read vulnerabilities.
Conduct regular security assessments and code reviews to identify and address similar issues.

Patching and Updates

Stay informed about security updates and patches released by FAAD2.
Ensure timely application of patches to mitigate the risk of exploitation.