CVE-2024-34621
📋 TL;DR
An out-of-bounds read vulnerability in Samsung Notes allows local attackers to potentially read memory contents. This affects Samsung Notes versions prior to 4.4.21.62 on Samsung mobile devices. Attackers need local access to the device to exploit this vulnerability.
💻 Affected Systems
- Samsung Notes
📦 What is this software?
Notes by Samsung
⚠️ Risk & Real-World Impact
Worst Case
Local attacker could read sensitive memory contents, potentially exposing passwords, encryption keys, or other confidential data stored in memory.
Likely Case
Limited information disclosure of adjacent memory regions, potentially exposing application data or system information.
If Mitigated
Minimal impact with proper access controls and updated software.
🎯 Exploit Status
Requires local access and specific conditions to trigger the out-of-bounds read. No public exploit code has been disclosed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.4.21.62
Vendor Advisory: https://security.samsungmobile.com/serviceWeb.smsb?year=2024&month=08
Restart Required: No
Instructions:
1. Open Samsung Galaxy Store or Google Play Store. 2. Search for 'Samsung Notes'. 3. Update to version 4.4.21.62 or later. 4. Alternatively, enable automatic updates in your device settings.
🔧 Temporary Workarounds
Disable Samsung Notes
androidTemporarily disable the Samsung Notes application to prevent exploitation
Settings > Apps > Samsung Notes > Disable
Restrict local access
allImplement strict access controls and device security policies
🧯 If You Can't Patch
- Implement strict device access controls and monitoring
- Consider using alternative note-taking applications
🔍 How to Verify
Check if Vulnerable:
Check Samsung Notes version in device settings: Settings > Apps > Samsung Notes > App infoCheck Version:
No command line option. Check via device settings as described above.Verify Fix Applied:
Verify Samsung Notes version is 4.4.21.62 or higher📡 Detection & Monitoring
Log Indicators:
- Application crashes of Samsung Notes
- Unusual memory access patterns
Network Indicators:
- None - this is a local vulnerability
SIEM Query:
Application:SamsungNotes AND (EventID:1000 OR EventID:1001) AND Version:<4.4.21.62