CVE-2019-9133 : Security Advisory and Response

KMPlayer Subtitles parser Heap Overflow Vulnerability

Understanding CVE-2019-9133

This CVE involves a heap overflow vulnerability in KMPlayer, version 2018.12.24.14 or lower, when processing subtitles format media files.

What is CVE-2019-9133?

The vulnerability arises due to incorrect object size checking, leading to an integer underflow and subsequent memory out-of-bound read/write. Attackers can exploit this by tricking users into opening a malicious file.

The Impact of CVE-2019-9133

CVSS Base Score: 7.8 (High Severity)
Attack Vector: Local
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2019-9133

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability in KMPlayer allows for a heap overflow due to incorrect object size checking, resulting in an integer underflow and memory out-of-bound read/write.

Affected Systems and Versions

Affected Platforms: x86, x64
Affected Product: KMPlayer
Affected Version: KMPlayer version 2018.12.24.14 or lower

Exploitation Mechanism

The vulnerability can be exploited by deceiving users into opening a specially crafted malicious file.

Mitigation and Prevention

Protecting systems from this vulnerability requires immediate actions and long-term security practices.

Immediate Steps to Take

Update KMPlayer to a version higher than 2018.12.24.14
Avoid opening suspicious or untrusted media files

Long-Term Security Practices

Regularly update software and applications
Educate users on safe browsing habits

Patching and Updates

Ensure that KMPlayer is regularly updated to the latest version to mitigate the risk of this vulnerability.