CVE-2024-34658

4.0 MEDIUM

📋 TL;DR

An out-of-bounds read vulnerability in Samsung Notes allows local attackers to bypass ASLR (Address Space Layout Randomization). This affects Samsung mobile device users with vulnerable versions of Samsung Notes installed. Attackers need local access to the device to exploit this vulnerability.

💻 Affected Systems

Products:
  • Samsung Notes
Versions: Specific vulnerable versions not detailed in reference; check Samsung's September 2024 security bulletin
Operating Systems: Android (Samsung devices)
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects Samsung devices with Samsung Notes app installed. Requires local access to device.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Successful exploitation could allow an attacker to bypass ASLR protections, potentially enabling further exploitation chained with other vulnerabilities to achieve code execution or information disclosure.

🟠

Likely Case

Local attacker bypasses ASLR, making subsequent exploitation attempts more reliable but requiring additional vulnerabilities for full compromise.

🟢

If Mitigated

With proper security controls like updated software and limited local access, impact is minimal as this alone doesn't provide direct code execution.

🌐 Internet-Facing: LOW - This is a local vulnerability requiring physical or local access to the device.
🏢 Internal Only: MEDIUM - In environments where devices are shared or physical security is weak, this could be leveraged by malicious insiders or attackers with temporary access.

🎯 Exploit Status

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

Exploitation requires local access and knowledge of memory layout. ASLR bypass alone doesn't provide direct code execution but facilitates other attacks.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Samsung's September 2024 security updates

Vendor Advisory: https://security.samsungmobile.com/serviceWeb.smsb?year=2024&month=09

Restart Required: Yes

Instructions:

1. Check for device updates in Settings > Software update. 2. Install available security updates. 3. Ensure Samsung Notes is updated via Galaxy Store or Play Store. 4. Restart device after updates.

🔧 Temporary Workarounds

Disable Samsung Notes

android

Temporarily disable or uninstall Samsung Notes app if not needed

Restrict local access

all

Implement device locking policies and limit physical access to devices

🧯 If You Can't Patch

  • Implement strict physical security controls and device access policies
  • Monitor for suspicious local activity and consider application whitelisting

🔍 How to Verify

Check if Vulnerable:

Check Samsung Notes version and device security patch level in Settings > About phone > Software information

Check Version:

No single command; check via device Settings menu

Verify Fix Applied:

Verify security patch level is September 2024 or later and Samsung Notes is updated to latest version

📡 Detection & Monitoring

Log Indicators:

  • Unusual local application crashes or memory access errors in Samsung Notes

Network Indicators:

  • None - this is a local vulnerability

SIEM Query:

Not applicable for network detection; monitor device logs for application crashes

🔗 References

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