CVE-2018-25383 Commentcamarche CVE debrief

Who should care

Security teams managing endpoint software inventories, organizations with legacy audio processing tools, incident responders investigating suspicious activity from audio conversion applications, and compliance teams tracking deferred-status CVEs for risk assessment purposes.

Technical summary

Free MP3 CD Ripper 2.8 contains a stack-based buffer overflow vulnerability in its WMA file processing functionality. When a maliciously crafted WMA file is loaded through the Convert function, the application fails to properly validate input size, causing a stack buffer overflow. Attackers can exploit this by manipulating the Structured Exception Handler (SEH) chain to bypass Data Execution Prevention (DEP) protections. The attack chain involves using Return-Oriented Programming (ROP) gadgets to disable DEP, followed by shellcode injection and execution. The vulnerability requires local access to the system and the ability to supply a malicious WMA file, but requires no privileges or user interaction once the file is processed. The CVSS 4.0 score of 8.6 reflects high impacts across confidentiality, integrity, and availability dimensions.

Defensive priority

HIGH

Recommended defensive actions

• Remove or disable Free MP3 CD Ripper 2.8 from all endpoints
• Block execution of Free MP3 CD Ripper 2.8 via application control policies
• Prevent users from loading untrusted WMA files into audio conversion software
• Monitor for suspicious process spawning from Free MP3 CD Ripper processes
• Review endpoints for historical use of Free MP3 CD Ripper and scan for indicators of compromise
• Consider application sandboxing or virtualization for legacy audio conversion tools that must remain in use

Evidence notes

The vulnerability is classified as CWE-121 (Stack-based Buffer Overflow). The CVSS 4.0 vector indicates a local attack vector with low attack complexity, no privileges required, and no user interaction needed, resulting in high impacts to confidentiality, integrity, and availability. The NVD status is currently 'Deferred'.

Official resources