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CVE-2020-6840

Quick assessment

Affected
n/a n/a
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.

mruby是一款Ruby语言的轻量级实现。 mruby 2.1.0版本中的mrbgems/mruby-hash-ext/src/hash-ext.c文件的‘hash_slice’函数存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。

AI Predicted 8.1 Difficulty: Moderate EPSS 1.50% · P72
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I. Basic Information for CVE-2020-6840

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In mruby 2.1.0, there is a use-after-free in hash_slice in mrbgems/mruby-hash-ext/src/hash-ext.c.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
mruby 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
mruby是一款Ruby语言的轻量级实现。 mruby 2.1.0版本中的mrbgems/mruby-hash-ext/src/hash-ext.c文件的‘hash_slice’函数存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。
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
- n/a n/a -

II. Public POCs for CVE-2020-6840

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III. Intelligence Information for CVE-2020-6840

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Other References for CVE-2020-6840 (1)

Same Patch Batch · n/a · 2020-01-11 · 8 CVEs total

CVE-2020-6847 OpenTrade 跨站脚本漏洞
CVE-2019-20377 TopList 跨站脚本漏洞
CVE-2019-20378 ganglia-web 跨站脚本漏洞
CVE-2019-20379 ganglia-web 跨站脚本漏洞
CVE-2020-6838 mruby 资源管理错误漏洞
CVE-2020-6839 mruby 缓冲区错误漏洞
CVE-2020-6836 hot-formula-parser package for Node.js 命令注入漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2020-6840

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