CVE-2024-49838

Q: What is the severity of CVE-2024-49838?

CVE-2024-49838 has a CVSS score of 8.2 (HIGH). This vulnerability allows attackers to read sensitive memory contents when parsing malformed OCI (Oracle Call Interface) information elements with invalid length fields. It affects systems using Qualcomm components that process OCI data, potentially exposing cryptographic keys, credentials, or other sensitive information. The impact is limited to systems with Qualcomm chipsets that handle OCI parsing.

8.2 HIGH

📋 TL;DR

This vulnerability allows attackers to read sensitive memory contents when parsing malformed OCI (Oracle Call Interface) information elements with invalid length fields. It affects systems using Qualcomm components that process OCI data, potentially exposing cryptographic keys, credentials, or other sensitive information. The impact is limited to systems with Qualcomm chipsets that handle OCI parsing.

💻 Affected Systems

Products:

Qualcomm chipsets with OCI parsing capabilities

Versions: Specific versions not detailed in reference; affected versions are those prior to February 2025 security updates.

Operating Systems: Android, Linux-based systems using Qualcomm components

Default Config Vulnerable: ⚠️ Yes

Notes: Vulnerability is in Qualcomm firmware/drivers; exact product list requires checking Qualcomm's advisory.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete memory disclosure including cryptographic keys, authentication tokens, or sensitive application data leading to full system compromise.

🟠

Likely Case

Partial memory disclosure revealing some sensitive information that could be used for further attacks or data theft.

🟢

If Mitigated

No information disclosure due to proper input validation and memory isolation controls.

🌐 Internet-Facing: MEDIUM - Requires specific OCI parsing functionality exposed to untrusted inputs.

🏢 Internal Only: LOW - Typically requires local access or specific network conditions to trigger.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Exploitation requires crafting malformed OCI information elements and triggering parsing. No public exploits known as of reference date.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: February 2025 security updates from Qualcomm

Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/february-2025-bulletin.html

Restart Required: No

Instructions:

1. Check device manufacturer for available updates. 2. Apply Qualcomm February 2025 security patches. 3. Update device firmware through manufacturer channels.

🔧 Temporary Workarounds

Input validation enhancement

all

Implement additional validation for OCI information element length fields before parsing.

🧯 If You Can't Patch

Isolate affected systems from untrusted networks
Implement network filtering for OCI-related traffic

🔍 How to Verify

Check if Vulnerable:

Check device firmware version against Qualcomm's patched versions in February 2025 bulletin.

Check Version:

Device-specific commands vary; generally check Settings > About Phone > Build Number on Android devices.

Verify Fix Applied:

Verify firmware version includes February 2025 Qualcomm security updates.

📡 Detection & Monitoring

Log Indicators:

Memory access violations
Unexpected OCI parsing errors
Firmware crash logs

Network Indicators:

Malformed OCI packets
Unusual OCI traffic patterns

SIEM Query:

Search for firmware crash events or memory violation alerts related to OCI processing.

📊 Metadata

CVE ID: CVE-2024-49838

CVSS v3 Score: 8.2 (HIGH)

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

CWE: CWE-126

EPSS Score: 0.13% exploit probability (32.9th percentile)

Published: February 3, 2025

Last Updated: February 5, 2025

🔗 References

https://docs.qualcomm.com/product/publicresources/securitybulletin/february-2025-bulletin.html Patch,Vendor Advisory

📋 TL;DR

💻 Affected Systems

📦 What is this software?

Ar8035 Firmware by Qualcomm

Fastconnect 6200 Firmware by Qualcomm

Fastconnect 6700 Firmware by Qualcomm

Fastconnect 6800 Firmware by Qualcomm

Fastconnect 6900 Firmware by Qualcomm

Fastconnect 7800 Firmware by Qualcomm

Mdm9628 Firmware by Qualcomm

Qam8255p Firmware by Qualcomm

Qam8295p Firmware by Qualcomm

Qam8620p Firmware by Qualcomm

Qam8650p Firmware by Qualcomm

Qam8775p Firmware by Qualcomm

Qamsrv1h Firmware by Qualcomm

Qamsrv1m Firmware by Qualcomm

Qca6174a Firmware by Qualcomm

Qca6391 Firmware by Qualcomm

Qca6426 Firmware by Qualcomm

Qca6436 Firmware by Qualcomm

Qca6554a Firmware by Qualcomm

Qca6564a Firmware by Qualcomm

Qca6564au Firmware by Qualcomm

Qca6574 Firmware by Qualcomm

Qca6574a Firmware by Qualcomm

Qca6574au Firmware by Qualcomm

Qca6584au Firmware by Qualcomm

Qca6595 Firmware by Qualcomm

Qca6595au Firmware by Qualcomm

Qca6678aq Firmware by Qualcomm

Qca6688aq Firmware by Qualcomm

Qca6696 Firmware by Qualcomm

Qca6698aq Firmware by Qualcomm

Qca6777aq Firmware by Qualcomm

Qca6787aq Firmware by Qualcomm

Qca6797aq Firmware by Qualcomm

Qca8081 Firmware by Qualcomm

Qca8337 Firmware by Qualcomm

Qca9367 Firmware by Qualcomm

Qca9377 Firmware by Qualcomm

Qcc2073 Firmware by Qualcomm

Qcc2076 Firmware by Qualcomm

Qcc710 Firmware by Qualcomm

Qcm4325 Firmware by Qualcomm

Qcm4490 Firmware by Qualcomm

Qcm5430 Firmware by Qualcomm

Qcm6125 Firmware by Qualcomm

Qcm6490 Firmware by Qualcomm

Qcm8550 Firmware by Qualcomm

Qcn6024 Firmware by Qualcomm

Qcn6224 Firmware by Qualcomm

Qcn6274 Firmware by Qualcomm

Qcn9024 Firmware by Qualcomm

Qcn9274 Firmware by Qualcomm

Qcs4490 Firmware by Qualcomm

Qcs5430 Firmware by Qualcomm

Qcs6125 Firmware by Qualcomm

Qcs615 Firmware by Qualcomm

Qcs6490 Firmware by Qualcomm

Qcs7230 Firmware by Qualcomm

Qcs8250 Firmware by Qualcomm

Qcs8300 Firmware by Qualcomm

Qcs8550 Firmware by Qualcomm

Qcs9100 Firmware by Qualcomm

Qep8111 Firmware by Qualcomm

Qfw7114 Firmware by Qualcomm

Qfw7124 Firmware by Qualcomm

Sa6155p Firmware by Qualcomm

Sa7255p Firmware by Qualcomm

Sa7775p Firmware by Qualcomm

Sa8155p Firmware by Qualcomm

Sa8195p Firmware by Qualcomm

Sa8255p Firmware by Qualcomm

Sa8295p Firmware by Qualcomm

Sa8530p Firmware by Qualcomm

Sa8540p Firmware by Qualcomm

Sa8620p Firmware by Qualcomm

Sa8650p Firmware by Qualcomm

Sa8770p Firmware by Qualcomm