CVE-2022-36844 : Exploit Details and Defense Strategies

A heap-based overflow vulnerability in HWR::EngJudgeModel::Construct() in libSDKRecognitionText.spensdk.samsung.so library prior to SMR Sep-2022 Release 1 allows an attacker to cause a memory access fault.

Understanding CVE-2022-36844

This CVE highlights a vulnerability in Samsung Mobile Devices that can be exploited by attackers to trigger a heap-based overflow.

What is CVE-2022-36844?

The vulnerability identified as CVE-2022-36844 exists in the HWR::EngJudgeModel::Construct() function within the libSDKRecognitionText.spensdk.samsung.so library before the SMR Sep-2022 Release 1 in Samsung Mobile Devices. This flaw could lead to a heap-based overflow, enabling adversaries to induce a memory access fault.

The Impact of CVE-2022-36844

With a CVSS base score of 4.4, this vulnerability carries a medium severity level due to its potential to cause a memory access fault. The attack complexity is low, with local attack vector and low impact on availability and integrity. Although it requires low privileges and has no user interaction, it can affect the system's stability.

Technical Details of CVE-2022-36844

This section delves into the specifics of the vulnerability, including the affected systems, versions, and the exploitation mechanism.

Vulnerability Description

The heap-based overflow vulnerability in HWR::EngJudgeModel::Construct() allows attackers to corrupt memory, leading to a memory access fault and potential system instability.

Affected Systems and Versions

Samsung Mobile Devices running custom versions Q(10), R(11), S(12) prior to SMR Sep-2022 Release 1 are impacted by this vulnerability.

Exploitation Mechanism

By exploiting the vulnerability in the libSDKRecognitionText.spensdk.samsung.so library, attackers can trigger a heap-based overflow, compromising the system's stability.

Mitigation and Prevention

To safeguard your system from CVE-2022-36844, consider implementing the following mitigation strategies.

Immediate Steps to Take

Update Samsung Mobile Devices to SMR Sep-2022 Release 1 or later to patch the vulnerability and prevent exploitation.
Monitor security advisories from Samsung Mobile for any official patches or updates related to this vulnerability.

Long-Term Security Practices

Regularly update your mobile devices to the latest software versions to ensure that known vulnerabilities are addressed promptly.
Employ security solutions that can detect and prevent potential exploit attempts targeting heap-based buffer overflows.

Patching and Updates

Stay informed about security updates and patches released by Samsung Mobile for your device. Promptly apply these updates to enhance the security posture of your mobile devices.