CVE-2025-29484
📋 TL;DR
CVE-2025-29484 is an out-of-memory vulnerability in libming's parseABC_NS_SET_INFO function that allows attackers to trigger allocator exhaustion, leading to Denial of Service (DoS). This affects systems using libming v0.4.8 to parse SWF/Flash content. Organizations processing untrusted SWF files are at risk.
💻 Affected Systems
- libming
📦 What is this software?
Libming by Libming
⚠️ Risk & Real-World Impact
Worst Case
Complete service unavailability due to memory exhaustion crashes, potentially affecting all applications using the vulnerable libming library.
Likely Case
Application crashes or hangs when processing malicious SWF files, causing temporary DoS until services restart.
If Mitigated
Limited impact with proper input validation and memory limits, though crashes may still occur with specifically crafted files.
🎯 Exploit Status
Exploitation requires crafting a malicious SWF file that triggers the memory allocation issue. No authentication is needed if the application processes external files.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check upstream libming repository for fixes
Vendor Advisory: https://github.com/libming/libming/issues/330
Restart Required: No
Instructions:
1. Monitor libming repository for patch release. 2. Update to patched version when available. 3. Recompile applications using libming if statically linked.
🔧 Temporary Workarounds
Input validation and file restrictions
allImplement strict validation of SWF files before processing and limit file sizes
Memory limit enforcement
linuxConfigure memory limits for processes using libming to prevent complete system exhaustion
ulimit -v [LIMIT_IN_KB] # For Linux systems
🧯 If You Can't Patch
- Isolate systems processing SWF files in restricted environments
- Implement network segmentation to limit blast radius if DoS occurs
🔍 How to Verify
Check if Vulnerable:
Check if libming v0.4.8 is installed and used by applications: ldd /path/to/application | grep mingCheck Version:
strings /usr/lib/libming.so | grep -i version || ming --version 2>/dev/nullVerify Fix Applied:
Verify libming version is updated beyond v0.4.8 and test with known malicious SWF files📡 Detection & Monitoring
Log Indicators:
- Application crashes with out-of-memory errors
- Process termination when parsing SWF files
- High memory usage spikes
Network Indicators:
- Unusually large SWF file uploads
- Multiple failed parsing attempts
SIEM Query:
source="application.log" ("out of memory" OR "allocator exhaustion" OR "parseABC") AND process="*ming*"