CVE-2018-25301: Easy MPEG to DVD Burner Buffer Overflow

CVE-2018-25301 Overview

Easy MPEG to DVD Burner 1.7.11 contains a structured exception handling (SEH) local buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying a malicious username string. This classic buffer overflow vulnerability enables attackers to craft a payload containing junk data, SEH chain pointers, and shellcode that overwrites the SEH handler to redirect execution and run arbitrary commands.

Critical Impact

Local attackers can achieve arbitrary code execution by exploiting the SEH-based buffer overflow, potentially gaining complete control over the affected system.

Affected Products

• Easy MPEG to DVD Burner version 1.7.11

Discovery Timeline

• 2026-04-29 - CVE CVE-2018-25301 published to NVD
• 2026-04-29 - Last updated in NVD database

Technical Details for CVE-2018-25301

Vulnerability Analysis

This vulnerability is classified under CWE-120 (Buffer Copy without Checking Size of Input), a fundamental memory safety issue where the application fails to properly validate the length of user-supplied input before copying it into a fixed-size buffer. The flaw exists in the username input handling functionality of Easy MPEG to DVD Burner.

When a user supplies an overly long username string, the application copies this data into a stack-based buffer without adequate bounds checking. This allows an attacker to overflow the buffer and overwrite adjacent memory structures, specifically targeting the Structured Exception Handler (SEH) chain stored on the stack.

Root Cause

The root cause stems from unsafe string handling operations that copy user-controlled input into a fixed-size buffer without validating the input length. The application lacks proper input sanitization and boundary checks when processing the username field, creating a classic stack-based buffer overflow condition. The vulnerable code path does not implement safe string functions or buffer size limits, allowing attackers to write beyond the allocated memory region.

Attack Vector

The attack requires local access to the system where Easy MPEG to DVD Burner is installed. An attacker crafts a malicious username string consisting of:

1. Junk data - Padding bytes to fill the buffer and reach the SEH chain
2. SEH chain pointers - Overwritten exception handler addresses pointing to attacker-controlled code
3. Shellcode - Malicious payload that executes when the exception handler is triggered

When the application encounters an exception (often triggered by the overflow itself), Windows attempts to handle it by walking the SEH chain. Since the attacker has overwritten the SEH handler pointer, execution is redirected to the attacker's shellcode, enabling arbitrary code execution such as spawning a calculator (calc.exe) or establishing a reverse shell.

The exploitation technique leverages the Windows SEH mechanism, which was a common target before modern exploit mitigations like SafeSEH and SEHOP were widely deployed. Technical details and a proof-of-concept exploit are available in the Exploit-DB #44565 entry.

Detection Methods for CVE-2018-25301

Indicators of Compromise

• Presence of Easy MPEG to DVD Burner version 1.7.11 installed on the system
• Unusual process crashes or exception handling events from the application
• Evidence of shellcode execution patterns following application use
• Unexpected child processes spawned by the Easy MPEG to DVD Burner executable

Detection Strategies

• Monitor for abnormal crash dumps or Windows Error Reporting events associated with Easy MPEG to DVD Burner
• Deploy endpoint detection rules that identify SEH-based exploitation patterns and stack pivot techniques
• Implement application allowlisting to prevent unauthorized execution of legacy vulnerable software
• Use memory protection tools that can detect stack corruption and SEH overwrites

Monitoring Recommendations

• Enable Windows Event Logging for application crashes and access violations (Event ID 1000, 1001)
• Configure endpoint security solutions to alert on buffer overflow exploitation attempts
• Monitor for execution of unexpected commands (such as calc.exe or cmd.exe) spawned from media conversion applications
• Review installed software inventory for outdated and vulnerable applications

How to Mitigate CVE-2018-25301

Immediate Actions Required

• Remove or uninstall Easy MPEG to DVD Burner version 1.7.11 from all systems
• Replace with a modern, actively maintained alternative for MPEG to DVD conversion
• Ensure Windows DEP (Data Execution Prevention) and ASLR are enabled system-wide
• Restrict local user access to systems where the vulnerable software cannot be immediately removed

Patch Information

No vendor patch is currently available for this vulnerability. The software appears to be abandonware with no active maintenance or security updates. Organizations should consider this software end-of-life and migrate to supported alternatives. Additional details are available from the VulnCheck Advisory on Buffer Overflow.

Workarounds

• Uninstall Easy MPEG to DVD Burner from all affected systems as the primary mitigation
• If removal is not immediately possible, restrict application execution through Windows AppLocker or Software Restriction Policies
• Enable enhanced exploit protection features in Windows Defender Exploit Guard, including SEHOP (Structured Exception Handling Overwrite Protection)
• Limit local user privileges to reduce the impact of potential exploitation

# Windows Defender Exploit Guard - Enable SEHOP for all applications
# Run in elevated PowerShell
Set-ProcessMitigation -System -Enable SEHOP