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CVE-2021-38423— GurumDDS Heap-based Incorrect Calculation of Buffer Size

Quick assessment

Affected
GurumNetworks GurumDDS
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.

GurumNetworks GurumDds是韩国GurumNetworks公司的一个分布式通信解决方案。 GurumNetworks GurumDDS 中存在缓冲区错误漏洞，该漏洞源于产品未能正确处理数据边界。攻击者可通过该漏洞导致拒绝服务以及执行任意代码。

CVSS 6.6 · Medium EPSS 1.25% · P67

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-38423

Vulnerability Information
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Vulnerability Title
GurumDDS Heap-based Incorrect Calculation of Buffer Size
Source: CVE Program / CVE List V5
Vulnerability Description
All versions of GurumDDS improperly calculate the size to be used when allocating the buffer, which may result in a buffer overflow.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缓冲区大小计算不正确
Source: CVE Program / CVE List V5
Vulnerability Title
GurumNetworks GurumDDS 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GurumNetworks GurumDds是韩国GurumNetworks公司的一个分布式通信解决方案。 GurumNetworks GurumDDS 中存在缓冲区错误漏洞，该漏洞源于产品未能正确处理数据边界。攻击者可通过该漏洞导致拒绝服务以及执行任意代码。
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
GurumNetworks GurumDDS all versions -

II. Public POCs for CVE-2021-38423

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-38423

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Vendor Advisories for CVE-2021-38423 (1)

IV. Related Vulnerabilities

Same product: GurumDDS
Same vendor: GurumNetworks
Same weakness: CWE-131

V. Comments for CVE-2021-38423

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