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CVE-2023-2618 : Security Advisory and Response

CVE-2023-2618 involves a memory leak vulnerability in OpenCV wechat_qrcode Module up to version 4.7.0, allowing remote exploitation. Learn more about impact, technical details, and mitigation.

This CVE-2023-2618 involves a vulnerability found in the OpenCV wechat_qrcode Module up to version 4.7.0, specifically affecting the function

DecodedBitStreamParser::decodeHanziSegment
in the file
qrcode/decoder/decoded_bit_stream_parser.cpp
. The vulnerability is classified as a memory leak issue, with the potential for remote exploitation.

Understanding CVE-2023-2618

This section delves into the details of CVE-2023-2618, highlighting the vulnerability, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-2618?

CVE-2023-2618 is a memory leak vulnerability identified in the OpenCV wechat_qrcode Module, allowing for remote attacks through the manipulation of the

DecodedBitStreamParser::decodeHanziSegment
function.

The Impact of CVE-2023-2618

The impact of this vulnerability is classified as "MEDIUM" based on the CVSS v3.1 scoring, with a base score of 5.3. It has the potential to lead to a memory leak, affecting the confidentiality and integrity of the system.

Technical Details of CVE-2023-2618

In this section, we explore the technical aspects of CVE-2023-2618, including vulnerability description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerability in OpenCV wechat_qrcode Module up to version 4.7.0 arises from the

DecodedBitStreamParser::decodeHanziSegment
function, resulting in a memory leak that can be exploited remotely.

Affected Systems and Versions

The versions affected by CVE-2023-2618 include 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, and 4.7 of the OpenCV wechat_qrcode Module.

Exploitation Mechanism

The exploitation of this vulnerability involves manipulating the

DecodedBitStreamParser::decodeHanziSegment
function to trigger a memory leak, potentially compromising system security.

Mitigation and Prevention

This section outlines the necessary steps to mitigate the risks associated with CVE-2023-2618, focusing on immediate actions and long-term security practices.

Immediate Steps to Take

To address CVE-2023-2618, it is recommended to apply the patch (2b62ff6181163eea029ed1cab11363b4996e9cd6) provided by OpenCV. Updating to the patched version is crucial to prevent exploitation.

Long-Term Security Practices

Incorporating secure coding practices, regularly updating software, and monitoring for vulnerabilities are essential long-term strategies to enhance system security and prevent similar issues in the future.

Patching and Updates

Staying informed about security patches released by OpenCV and promptly applying them to the affected systems is vital to mitigate the risks posed by CVE-2023-2618 and other potential vulnerabilities.

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