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CVE-2023-2618— OpenCV wechat_qrcode Module decoded_bit_stream_parser.cpp decodeHanziSegment memory leak

Quick assessment

Affected
OpenCV wechat_qrcode Module
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenCV是一款开源的、跨平台的、轻量级计算机视觉库。 OpenCV wechat_qrcode模块存在安全漏洞，该漏洞源于文件 qrcode/decoder/decoded_bit_stream_parser.cpp 的函数 DecodedBitStreamParser::decodeHanziSegment 可能导致内存泄漏。

CVSS 5.3 · Medium EPSS 1.30% · P68

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services
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I. Basic Information for CVE-2023-2618

Vulnerability Information
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Vulnerability Title
OpenCV wechat_qrcode Module decoded_bit_stream_parser.cpp decodeHanziSegment memory leak
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as problematic, has been found in OpenCV wechat_qrcode Module up to 4.7.0. Affected by this issue is the function DecodedBitStreamParser::decodeHanziSegment of the file qrcode/decoder/decoded_bit_stream_parser.cpp. The manipulation leads to memory leak. The attack may be launched remotely. The name of the patch is 2b62ff6181163eea029ed1cab11363b4996e9cd6. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-228548.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: CVE Program / CVE List V5
Vulnerability Title
OpenCV 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenCV是一款开源的、跨平台的、轻量级计算机视觉库。 OpenCV wechat_qrcode模块存在安全漏洞，该漏洞源于文件 qrcode/decoder/decoded_bit_stream_parser.cpp 的函数 DecodedBitStreamParser::decodeHanziSegment 可能导致内存泄漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenCV wechat_qrcode Module 4.0 -

II. Public POCs for CVE-2023-2618

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III. Intelligence Information for CVE-2023-2618

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Patches & Fixes for CVE-2023-2618 (2)

Vendor Advisories for CVE-2023-2618 (1)

IV. Related Vulnerabilities

Same product: wechat_qrcode Module
Same vendor: OpenCV
Same weakness: CWE-401

V. Comments for CVE-2023-2618

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