CVE-2017-12801 Explained : Impact and Mitigation

CVE-2017-12801 pertains to a vulnerability in libebml2 that allows a crafted mkv file to trigger a denial of service condition. Learn more about the impact, technical details, and mitigation steps associated with this CVE.

Understanding CVE-2017-12801

This section provides insights into the nature and implications of CVE-2017-12801.

What is CVE-2017-12801?

The vulnerability in libebml2 enables a denial of service attack through a specially crafted mkv file exploiting the UpdateDataSize function in ebmlmaster.c.

The Impact of CVE-2017-12801

Exploiting this vulnerability can lead to a denial of service condition due to an assert fault triggered by the malicious mkv file.

Technical Details of CVE-2017-12801

Explore the technical aspects of CVE-2017-12801 to understand its implications.

Vulnerability Description

The UpdateDataSize function in ebmlmaster.c of libebml2 up to 2012-08-26 is susceptible to remote attacks causing a denial of service due to an assert fault from a specially crafted mkv file.

Affected Systems and Versions

Affected Systems: Not applicable
Affected Versions: All versions of libebml2 up to 2012-08-26

Exploitation Mechanism

The vulnerability can be exploited by crafting a malicious mkv file to trigger the UpdateDataSize function in ebmlmaster.c, leading to a denial of service condition.

Mitigation and Prevention

Discover the steps to mitigate and prevent the exploitation of CVE-2017-12801.

Immediate Steps to Take

Implement file validation mechanisms to detect and block malicious mkv files.
Update libebml2 to a patched version that addresses the vulnerability.

Long-Term Security Practices

Regularly update software components to ensure the latest security patches are applied.
Conduct security assessments and audits to identify and remediate vulnerabilities proactively.

Patching and Updates

Apply patches and updates provided by the software vendor to address the CVE-2017-12801 vulnerability.