CVE-2017-14648

9.8 CRITICAL

📋 TL;DR

A global buffer overflow vulnerability in BladeEnc 0.94.2 allows attackers to write beyond allocated memory boundaries in the iteration_loop function. This can lead to remote denial of service or potential arbitrary code execution. Users of BladeEnc version 0.94.2 are affected.

💻 Affected Systems

Products:
  • BladeEnc
Versions: 0.94.2
Operating Systems: Linux, Unix-like systems
Default Config Vulnerable: ⚠️ Yes
Notes: BladeEnc is an MP3 encoder, typically used in audio processing applications or media servers.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution with full system compromise, allowing attackers to execute arbitrary commands on the affected system.

🟠

Likely Case

Remote denial of service causing application crashes and service disruption.

🟢

If Mitigated

Limited impact with proper network segmentation and exploit mitigations like ASLR and DEP.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Buffer overflow vulnerabilities in audio processing tools are often exploited via crafted audio files.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not specified in available references; consider upgrading to a newer version or applying distribution patches.

Vendor Advisory: https://security.gentoo.org/glsa/202107-18

Restart Required: Yes

Instructions:

1. Check your distribution's security advisories (e.g., Gentoo GLSA 202107-18). 2. Apply the provided patch or update package. 3. Restart any services using BladeEnc.

🔧 Temporary Workarounds

Disable or Remove BladeEnc

linux

Remove or disable BladeEnc if not essential to prevent exploitation.

sudo apt remove bladeenc
sudo yum remove bladeenc

🧯 If You Can't Patch

  • Implement strict input validation for audio files processed by BladeEnc.
  • Isolate BladeEnc usage in a sandboxed or containerized environment with limited privileges.

🔍 How to Verify

Check if Vulnerable:

Check BladeEnc version: bladeenc --version or dpkg -l | grep bladeenc

Check Version:

bladeenc --version 2>&1 | head -1

Verify Fix Applied:

Verify version is updated or patch applied via package manager status.

📡 Detection & Monitoring

Log Indicators:

  • Application crashes, segmentation faults, or abnormal termination of BladeEnc processes.

Network Indicators:

  • Unusual network traffic to/from systems running BladeEnc, especially with audio file uploads.

SIEM Query:

process_name:"bladeenc" AND (event_type:"crash" OR exit_code:139)

🔗 References

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