CVE-2018-5850 : What You Need to Know

CVE-2018-5850 was published on May 11, 2018, by Qualcomm, Inc. The vulnerability affects various Qualcomm products utilizing the Linux kernel.

Understanding CVE-2018-5850

This CVE identifies a specific vulnerability related to insufficient validation in a key length, potentially leading to a buffer overflow in Android releases based on CAF.

What is CVE-2018-5850?

The function csr_update_fils_params_rso() lacks proper validation for key length, allowing an integer underflow that can result in a buffer overflow. This vulnerability impacts all Android releases from CAF using the Linux kernel.

The Impact of CVE-2018-5850

The vulnerability can be exploited to trigger a buffer overflow, potentially leading to arbitrary code execution or system crashes.

Technical Details of CVE-2018-5850

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

Vulnerability Description

The function csr_update_fils_params_rso() in Android releases from CAF lacks adequate validation for key length, leading to an integer underflow and subsequent buffer overflow.

Affected Systems and Versions

Products: Android for MSM, Firefox OS for MSM, QRD Android
Vendor: Qualcomm, Inc.
Versions: All Android releases from CAF using the Linux kernel

Exploitation Mechanism

The vulnerability can be exploited by crafting a specific input to trigger the integer underflow, resulting in a buffer overflow.

Mitigation and Prevention

Protecting systems from CVE-2018-5850 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches provided by Qualcomm or relevant vendors promptly.
Monitor security bulletins for updates and advisories.

Long-Term Security Practices

Implement secure coding practices to prevent buffer overflows.
Conduct regular security assessments and code reviews to identify vulnerabilities.

Patching and Updates

Regularly update systems with the latest security patches and firmware releases to mitigate the risk of exploitation.