CVE-2019-14134 : Exploit Details and Defense Strategies

A vulnerability in WLAN handler in various Qualcomm Snapdragon platforms could allow for a buffer over-read issue, potentially leading to out-of-bound access.

Understanding CVE-2019-14134

This CVE involves a specific issue in the WLAN handler of Qualcomm Snapdragon platforms, affecting multiple product lines.

What is CVE-2019-14134?

The vulnerability arises when the received length value in the WLAN handler's rx path is shorter than the expected length value of the country information element, potentially causing out-of-bound access.

The Impact of CVE-2019-14134

The vulnerability could be exploited to trigger a buffer over-read issue, which may lead to unauthorized access to sensitive data or system crashes.

Technical Details of CVE-2019-14134

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The issue involves a potential out-of-bound access in the WLAN handler due to discrepancies in length values.

Affected Systems and Versions

Affected Products: Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking
Affected Versions: IPQ8074, QCA8081, QCS605, SDA845, SDM670, SDM710, SDM845, SDM850, SM6150, SM7150, SM8150, SXR1130

Exploitation Mechanism

The vulnerability can be exploited by crafting malicious packets to trigger the buffer over-read issue in the WLAN handler.

Mitigation and Prevention

Protecting systems from CVE-2019-14134 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches or updates provided by Qualcomm to address the vulnerability.
Monitor network traffic for any suspicious activities that could indicate exploitation.

Long-Term Security Practices

Regularly update firmware and software to ensure the latest security patches are in place.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Qualcomm has released security bulletins addressing the vulnerability. Ensure to apply the relevant patches to mitigate the risk of exploitation.