CVE-2024-34628
📋 TL;DR
An out-of-bounds read vulnerability in Samsung Notes allows local attackers to potentially read arbitrary 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 reads sensitive memory contents including passwords, encryption keys, or other application data, potentially leading to further system compromise.
Likely Case
Local attacker reads limited memory contents from the Samsung Notes process, potentially exposing some application data or system information.
If Mitigated
With proper patching, no memory reading occurs and the application functions normally with bounds checking in place.
🎯 Exploit Status
Requires local access to device and knowledge of triggering the out-of-bounds read condition. 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 on your Samsung device. 2. Search for 'Samsung Notes'. 3. If an update is available, tap 'Update'. 4. Alternatively, go to Settings > Apps > Samsung Notes > App details in store > Update.
🔧 Temporary Workarounds
Disable Samsung Notes
androidTemporarily disable the Samsung Notes application to prevent exploitation
adb shell pm disable-user --user 0 com.samsung.android.app.notes
Restrict app permissions
androidRemove unnecessary permissions from Samsung Notes to limit potential impact
adb shell pm revoke com.samsung.android.app.notes android.permission.READ_EXTERNAL_STORAGE
🧯 If You Can't Patch
- Restrict physical access to devices and implement strong device management policies
- Monitor for suspicious activity and implement application whitelisting to prevent unauthorized apps
🔍 How to Verify
Check if Vulnerable:
Check Samsung Notes version in device Settings > Apps > Samsung Notes > App infoCheck Version:
adb shell dumpsys package com.samsung.android.app.notes | grep versionNameVerify Fix Applied:
Verify Samsung Notes version is 4.4.21.62 or higher📡 Detection & Monitoring
Log Indicators:
- Application crashes of Samsung Notes
- Memory access violation logs in system logs
Network Indicators:
- No network indicators - this is a local vulnerability
SIEM Query:
source="android_system" AND (process="com.samsung.android.app.notes" AND (event="crash" OR event="segfault"))