CVE-2024-28318 – This vulnerability in GPAC multimedia framework... (How to Fix)

Q: What is the severity of CVE-2024-28318?

CVE-2024-28318 has a CVSS score of 7.1 (HIGH). This vulnerability in GPAC multimedia framework allows attackers to write data beyond allocated memory boundaries when processing SWF files. It affects systems running vulnerable versions of GPAC that process untrusted SWF content, potentially leading to arbitrary code execution.

📋 TL;DR

This vulnerability in GPAC multimedia framework allows attackers to write data beyond allocated memory boundaries when processing SWF files. It affects systems running vulnerable versions of GPAC that process untrusted SWF content, potentially leading to arbitrary code execution.

💻 Affected Systems

Products:

GPAC Multimedia Framework

Versions: 2.3-DEV-rev921-g422b78ecf-master and potentially earlier development versions

Operating Systems: Linux, Windows, macOS, BSD

Default Config Vulnerable: ⚠️ Yes

Notes: Vulnerability triggers when processing SWF (Shockwave Flash) files through the affected function.

📦 What is this software?

Gpac by Gpac

View all CVEs affecting Gpac →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution with the privileges of the GPAC process, potentially leading to full system compromise.

🟠

Likely Case

Application crash (denial of service) or limited memory corruption leading to unstable behavior.

🟢

If Mitigated

No impact if SWF file processing is disabled or proper input validation is implemented.

🌐 Internet-Facing: MEDIUM - Requires processing of malicious SWF files, which could be delivered via web applications or media services.

🏢 Internal Only: LOW - Typically requires user interaction to open malicious files or integration with vulnerable media processing pipelines.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ⚠️ Yes

Complexity: MEDIUM

Exploitation requires crafting a malicious SWF file that triggers the out-of-bounds write condition.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check latest GPAC releases after the vulnerability disclosure

Vendor Advisory: https://github.com/gpac/gpac/issues/2764

Restart Required: Yes

Instructions:

1. Check current GPAC version. 2. Update to latest patched version from official repository. 3. Restart any services using GPAC.

🔧 Temporary Workarounds

Disable SWF Processing

all

Configure GPAC to reject or not process SWF files

Configure GPAC filters to exclude SWF file types

Input Validation

all

Implement strict validation of SWF files before processing

Use file validation scripts before passing to GPAC

🧯 If You Can't Patch

Isolate GPAC instances in restricted containers or sandboxes
Implement network segmentation to limit blast radius

🔍 How to Verify

Check if Vulnerable:

Check if GPAC version matches affected development version: gpac -version

Check Version:

gpac -version

Verify Fix Applied:

Verify updated version no longer contains the vulnerable code in swf_parse.c

📡 Detection & Monitoring

Log Indicators:

GPAC process crashes
Memory access violation errors
Abnormal termination when processing SWF files

Network Indicators:

Unexpected SWF file transfers to media processing systems

SIEM Query:

Process:gpac AND (EventID:1000 OR ExceptionCode:c0000005)

📊 Metadata

CVE ID: CVE-2024-28318

CVSS v3 Score: 7.1 (HIGH)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

CWE: CWE-787

Published: March 15, 2024

Last Updated: September 26, 2025

🔗 References

https://github.com/gpac/gpac/issues/2764 Exploit,Issue Tracking
https://github.com/gpac/gpac/issues/2764 Exploit,Issue Tracking

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🔗 Related Vulnerabilities

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