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CVE-2021-32823— Potential Denial-of-Service in bindata

Quick assessment

Affected
dmendel bindata
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.

BinData是开源的一种读取和写入结构化二进制数据的声明方式。BinData 使创建新数据类型变得容易。它支持在结构化二进制数据格式中找到的所有常见原始数据类型。内置了对依赖和可变长度字段的支持。 BinData RubyGem在2.4.10版本之前存在安全漏洞，该漏洞存在一个潜在的拒绝服务漏洞。

CVSS 3.7 · Low EPSS 1.87% · P78

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2021-32823

Vulnerability Information
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Vulnerability Title
Potential Denial-of-Service in bindata
Source: CVE Program / CVE List V5
Vulnerability Description
In the bindata RubyGem before version 2.4.10 there is a potential denial-of-service vulnerability. In affected versions it is very slow for certain classes in BinData to be created. For example BinData::Bit100000, BinData::Bit100001, BinData::Bit100002, BinData::Bit<N>. In combination with <user_input>.constantize there is a potential for a CPU-based DoS. In version 2.4.10 bindata improved the creation time of Bits and Integers.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
BinData 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BinData是开源的一种读取和写入结构化二进制数据的声明方式。BinData 使创建新数据类型变得容易。它支持在结构化二进制数据格式中找到的所有常见原始数据类型。内置了对依赖和可变长度字段的支持。 BinData RubyGem在2.4.10版本之前存在安全漏洞，该漏洞存在一个潜在的拒绝服务漏洞。
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
dmendel bindata < 2.4.10 -

II. Public POCs for CVE-2021-32823

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III. Intelligence Information for CVE-2021-32823

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Patches & Fixes for CVE-2021-32823 (1)

Other References for CVE-2021-32823 (2)

IV. Related Vulnerabilities

Same weakness: CWE-400

V. Comments for CVE-2021-32823

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