CVE-2023-26339

5.5 MEDIUM

📋 TL;DR

Adobe Dimension versions 3.4.7 and earlier contain an out-of-bounds read vulnerability that could allow attackers to read sensitive memory information. This could help bypass security mitigations like ASLR. Users who open malicious files with vulnerable versions are affected.

💻 Affected Systems

Products:
  • Adobe Dimension
Versions: 3.4.7 and earlier
Operating Systems: Windows, macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of affected versions are vulnerable by default when processing files.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Memory disclosure enables ASLR bypass, potentially facilitating more severe attacks like remote code execution through chained exploits.

🟠

Likely Case

Information disclosure revealing memory layout, which could assist in developing further exploits against the system.

🟢

If Mitigated

Limited impact with proper file handling controls and updated software.

🌐 Internet-Facing: LOW - Requires user interaction to open malicious files, not directly exploitable over network.
🏢 Internal Only: MEDIUM - Internal users could be targeted with malicious files via email or shared drives.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires user to open malicious file; no known public exploits as of advisory date.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.4.8 or later

Vendor Advisory: https://helpx.adobe.com/security/products/dimension/apsb23-20.html

Restart Required: Yes

Instructions:

1. Open Adobe Dimension
2. Go to Help > Check for Updates
3. Follow prompts to install version 3.4.8 or later
4. Restart application after installation

🔧 Temporary Workarounds

Restrict file handling

all

Only open Dimension files from trusted sources; implement file type restrictions.

🧯 If You Can't Patch

  • Restrict user permissions to prevent opening untrusted files
  • Use application control to block execution of vulnerable versions

🔍 How to Verify

Check if Vulnerable:

Check Adobe Dimension version in application or via Help > About

Check Version:

Not applicable - check via application interface

Verify Fix Applied:

Confirm version is 3.4.8 or higher in Help > About

📡 Detection & Monitoring

Log Indicators:

  • Application crashes or unexpected file processing errors in Dimension logs

Network Indicators:

  • Unusual file downloads preceding application issues

SIEM Query:

EventID for application crashes or file access from Adobe Dimension

🔗 References

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