CVE-2010-4654

7.8 HIGH

📋 TL;DR

CVE-2010-4654 is a stack corruption vulnerability in poppler PDF rendering library versions before 0.16.3. Malformed PDF commands can corrupt the internal stack, potentially allowing arbitrary code execution. Systems using vulnerable poppler versions for PDF processing are affected.

💻 Affected Systems

Products:
  • poppler
  • applications using poppler library (e.g., PDF viewers, document processors)
Versions: poppler versions before 0.16.3
Operating Systems: Linux distributions, Unix-like systems
Default Config Vulnerable: ⚠️ Yes
Notes: Any application linking against vulnerable poppler versions is affected when processing PDF files.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution with the privileges of the application using poppler, potentially leading to complete system compromise.

🟠

Likely Case

Application crash or denial of service when processing malicious PDF files.

🟢

If Mitigated

Limited to denial of service if exploit attempts are blocked or applications run with reduced privileges.

🌐 Internet-Facing: MEDIUM - PDF processing applications exposed to untrusted input could be exploited remotely.
🏢 Internal Only: LOW - Requires user interaction to open malicious PDF files, limiting internal exposure.

🎯 Exploit Status

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

Exploitation requires user to open a malicious PDF file. Public proof-of-concept code exists demonstrating the vulnerability.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: poppler 0.16.3 and later

Vendor Advisory: https://access.redhat.com/security/cve/cve-2010-4654

Restart Required: Yes

Instructions:

1. Update poppler package using system package manager. 2. For Linux: 'sudo apt-get update && sudo apt-get install poppler-utils' (Debian/Ubuntu) or 'sudo yum update poppler' (RHEL/CentOS). 3. Restart affected applications using poppler.

🔧 Temporary Workarounds

Disable PDF processing

all

Temporarily disable PDF file processing in affected applications until patched.

Use alternative PDF renderer

linux

Configure applications to use alternative PDF rendering libraries instead of poppler.

🧯 If You Can't Patch

  • Implement application whitelisting to prevent execution of unauthorized PDF processing applications.
  • Deploy PDF file type filtering at network perimeter to block malicious PDF files.

🔍 How to Verify

Check if Vulnerable:

Check poppler version: 'poppler-tools --version' or 'dpkg -l | grep poppler' on Debian/Ubuntu, 'rpm -q poppler' on RHEL/CentOS.

Check Version:

poppler-tools --version 2>/dev/null || dpkg -l | grep poppler 2>/dev/null || rpm -q poppler 2>/dev/null

Verify Fix Applied:

Verify installed poppler version is 0.16.3 or higher using version check commands.

📡 Detection & Monitoring

Log Indicators:

  • Application crashes when processing PDF files
  • Segmentation fault errors in application logs

Network Indicators:

  • Unusual PDF file downloads to systems with vulnerable poppler

SIEM Query:

source="application_logs" AND ("segmentation fault" OR "crash") AND "pdf"

🔗 References

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