CVE-2023-28558

Q: What is the severity of CVE-2023-28558?

CVE-2023-28558 has a CVSS score of 7.8 (HIGH). This vulnerability allows memory corruption in Qualcomm WLAN handlers when processing PhyID in Tx status handlers. It affects devices with Qualcomm chipsets that handle wireless networking. Attackers could potentially execute arbitrary code or cause denial of service.

7.8 HIGH

📋 TL;DR

This vulnerability allows memory corruption in Qualcomm WLAN handlers when processing PhyID in Tx status handlers. It affects devices with Qualcomm chipsets that handle wireless networking. Attackers could potentially execute arbitrary code or cause denial of service.

💻 Affected Systems

Products:

Qualcomm chipsets with WLAN functionality

Versions: Specific affected versions not detailed in provided references

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

Default Config Vulnerable: ⚠️ Yes

Notes: Affects devices with Qualcomm wireless chipsets; exact product list requires checking Qualcomm's detailed advisory.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete device compromise, data theft, or persistent backdoor installation.

🟠

Likely Case

Denial of service causing device crashes or instability in wireless functionality.

🟢

If Mitigated

Limited impact with proper network segmentation and exploit mitigations in place.

🌐 Internet-Facing: MEDIUM

🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ⚠️ Yes

Complexity: MEDIUM

Memory corruption vulnerabilities often require specific timing or conditions to exploit reliably.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Qualcomm September 2023 security bulletin for specific patches

Vendor Advisory: https://www.qualcomm.com/company/product-security/bulletins/september-2023-bulletin

Restart Required: Yes

Instructions:

1. Check Qualcomm advisory for your specific chipset. 2. Obtain firmware/software updates from device manufacturer. 3. Apply patches following manufacturer instructions. 4. Reboot device.

🔧 Temporary Workarounds

Disable vulnerable WLAN features

linux

Temporarily disable advanced WLAN features that might trigger the vulnerable code path

# Check device-specific WLAN configuration tools
# Example: iwconfig wlan0 power off (if applicable)

🧯 If You Can't Patch

Segment network to isolate vulnerable devices from untrusted networks
Implement strict network access controls and monitor for anomalous WLAN traffic

🔍 How to Verify

Check if Vulnerable:

Check device chipset version and compare against Qualcomm's patched versions in September 2023 bulletin

Check Version:

# Android: getprop ro.bootloader
# Linux: dmesg | grep -i qualcomm

Verify Fix Applied:

Verify firmware/software version matches patched versions listed in Qualcomm advisory

📡 Detection & Monitoring

Log Indicators:

Kernel panics or crashes related to WLAN drivers
Unexpected WLAN disconnections or errors

Network Indicators:

Abnormal WLAN packet patterns triggering the vulnerable handler

SIEM Query:

source="kernel" AND ("WLAN" OR "wifi") AND ("panic" OR "crash" OR "segfault")

📊 Metadata

CVE ID: CVE-2023-28558

CVSS v3 Score: 7.8 (HIGH)

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

CWE: CWE-129

Published: September 5, 2023

Last Updated: November 21, 2024

🔗 References

https://www.qualcomm.com/company/product-security/bulletins/september-2023-bulletin Vendor Advisory
https://www.qualcomm.com/company/product-security/bulletins/september-2023-bulletin Vendor Advisory

📋 TL;DR

💻 Affected Systems

📦 What is this software?

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Ar8035 Firmware by Qualcomm

Ar9380 Firmware by Qualcomm

Csr8811 Firmware by Qualcomm

Csra6620 Firmware by Qualcomm

Csra6640 Firmware by Qualcomm

Csrb31024 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

Ipq4018 Firmware by Qualcomm

Ipq4028 Firmware by Qualcomm

Ipq4029 Firmware by Qualcomm

Ipq8064 Firmware by Qualcomm

Ipq8069 Firmware by Qualcomm

Ipq8074 Firmware by Qualcomm

Qam8295p Firmware by Qualcomm

Qca1062 Firmware by Qualcomm

Qca1064 Firmware by Qualcomm

Qca2062 Firmware by Qualcomm

Qca2064 Firmware by Qualcomm

Qca2065 Firmware by Qualcomm

Qca2066 Firmware by Qualcomm

Qca6310 Firmware by Qualcomm

Qca6320 Firmware by Qualcomm

Qca6335 Firmware by Qualcomm

Qca6391 Firmware by Qualcomm

Qca6420 Firmware by Qualcomm

Qca6421 Firmware by Qualcomm

Qca6426 Firmware by Qualcomm

Qca6428 Firmware by Qualcomm

Qca6430 Firmware by Qualcomm

Qca6431 Firmware by Qualcomm

Qca6436 Firmware by Qualcomm

Qca6438 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

Qca6696 Firmware by Qualcomm

Qca6698aq Firmware by Qualcomm

Qca8081 Firmware by Qualcomm

Qca8337 Firmware by Qualcomm

Qca9888 Firmware by Qualcomm

Qca9889 Firmware by Qualcomm

Qca9898 Firmware by Qualcomm

Qca9980 Firmware by Qualcomm

Qca9984 Firmware by Qualcomm

Qca9990 Firmware by Qualcomm

Qca9992 Firmware by Qualcomm

Qca9994 Firmware by Qualcomm

Qcm4325 Firmware by Qualcomm

Qcm4490 Firmware by Qualcomm

Qcm6125 Firmware by Qualcomm

Qcm6490 Firmware by Qualcomm

Qcn6024 Firmware by Qualcomm

Qcn7605 Firmware by Qualcomm

Qcn7606 Firmware by Qualcomm

Qcn9024 Firmware by Qualcomm

Qcn9074 Firmware by Qualcomm

Qcs410 Firmware by Qualcomm

Qcs4490 Firmware by Qualcomm

Qcs610 Firmware by Qualcomm

Qcs6125 Firmware by Qualcomm

Qcs6490 Firmware by Qualcomm

Qsm8250 Firmware by Qualcomm

Qsm8350 Firmware by Qualcomm