CVE-2017-12780 : What You Need to Know
Discover the impact of CVE-2017-12780, a vulnerability in libebml2 allowing remote attackers to trigger a denial of service attack via a crafted mkv file. Learn about mitigation steps.
A vulnerability has been discovered in the ReadData function of the ebmlstring.c file in libebml2 versions up to and including 2012-08-26. This vulnerability can be exploited by remote attackers to cause a denial of service attack, resulting in an invalid free operation and ultimately crashing the affected application. The attack vector involves supplying a specially crafted mkv file.
Understanding CVE-2017-12780
This CVE entry describes a vulnerability in libebml2 that allows remote attackers to trigger a denial of service attack by exploiting a specific function in the software.
What is CVE-2017-12780?
The vulnerability in the ReadData function of the ebmlstring.c file in libebml2 versions up to 2012-08-26 enables remote attackers to execute a denial of service attack by providing a maliciously crafted mkv file.
The Impact of CVE-2017-12780
- Attackers can exploit this vulnerability to cause a denial of service, leading to an application crash.
Technical Details of CVE-2017-12780
This section provides more technical insights into the vulnerability.
Vulnerability Description
The ReadData function in ebmlstring.c in libebml2 through 2012-08-26 allows remote attackers to cause a denial of service (invalid free and application crash) via a crafted mkv file.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: Up to and including 2012-08-26
Exploitation Mechanism
- Attackers exploit the vulnerability by providing a specially crafted mkv file to trigger a denial of service attack.
Mitigation and Prevention
Protecting systems from this vulnerability requires specific actions.
Immediate Steps to Take
- Apply patches or updates provided by the software vendor.
- Avoid opening or accessing untrusted mkv files.
Long-Term Security Practices
- Regularly update software and apply security patches.
- Implement network security measures to prevent unauthorized access.
Patching and Updates
- Check for patches or updates released by the software vendor to address this vulnerability.