CVE-2017-17555 : What You Need to Know
Discover the impact of CVE-2017-17555, a vulnerability in the swri_audio_convert function of FFmpeg libswresample. Learn about affected systems, exploitation risks, and mitigation steps.
A vulnerability has been discovered in the swri_audio_convert function within the audioconvert.c file of FFmpeg libswresample up to version 3.0.101. This vulnerability affects various software products, including FFmpeg version 3.4.1 and aubio version 0.4.6. Exploiting this vulnerability could result in a denial of service attack, leading to NULL pointer dereference and application crashes. Threat actors can trigger this vulnerability by using a specifically crafted audio file.
Understanding CVE-2017-17555
This CVE identifies a vulnerability in FFmpeg libswresample that could allow remote attackers to cause a denial of service by exploiting a NULL pointer dereference.
What is CVE-2017-17555?
The vulnerability lies in the swri_audio_convert function of FFmpeg libswresample, impacting versions up to 3.0.101. Attackers can exploit this flaw to trigger a denial of service attack by using a specially crafted audio file.
The Impact of CVE-2017-17555
Exploiting this vulnerability can lead to a denial of service condition, causing application crashes and NULL pointer dereference, potentially disrupting the availability of affected systems.
Technical Details of CVE-2017-17555
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The swri_audio_convert function in audioconvert.c in FFmpeg libswresample through version 3.0.101 allows remote attackers to cause a denial of service through a crafted audio file.
Affected Systems and Versions
- FFmpeg version 3.4.1
- Aubio version 0.4.6
Exploitation Mechanism
Attackers can exploit this vulnerability by utilizing a specifically crafted audio file to trigger a denial of service attack.
Mitigation and Prevention
Protecting systems from CVE-2017-17555 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor patches promptly to mitigate the vulnerability.
- Implement network security measures to prevent unauthorized access.
Long-Term Security Practices
- Regularly update software and firmware to address security vulnerabilities.
- Conduct security assessments and penetration testing to identify and remediate weaknesses.
Patching and Updates
Ensure that all affected systems are updated with the latest patches to address the vulnerability.