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CVE-2021-21565

Quick assessment

Affected
Dell PowerScale OneFS
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.

Dell Technologies Dell PowerScale OneFS是美国Dell Technologies公司的一个操作系统。提供横向扩展NAS的PowerScale OneFS操作系统。 Dell PowerScale OneFS 版本 9.1.0.3 及更早版本存在资源管理错误漏洞，该漏洞源于SmartConnect的一个错误条件，可能会触发循环，使用 CPU 并可能阻止其他 SmartConnect DNS 响应。

CVSS 5.3 · Medium EPSS 0.95% · P58

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-21565

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Dell PowerScale OneFS versions 9.1.0.3 and earlier contain a denial of service vulnerability. SmartConnect had an error condition that may be triggered to loop, using CPU and potentially preventing other SmartConnect DNS responses.
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
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Dell Technologies Dell PowerScale OneFS 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Dell Technologies Dell PowerScale OneFS是美国Dell Technologies公司的一个操作系统。提供横向扩展NAS的PowerScale OneFS操作系统。 Dell PowerScale OneFS 版本 9.1.0.3 及更早版本存在资源管理错误漏洞，该漏洞源于SmartConnect的一个错误条件，可能会触发循环，使用 CPU 并可能阻止其他 SmartConnect DNS 响应。
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
Dell PowerScale OneFS unspecified ~ 9.1.0.3 -

II. Public POCs for CVE-2021-21565

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III. Intelligence Information for CVE-2021-21565

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Other References for CVE-2021-21565 (1)

Same Patch Batch · Dell · 2021-08-02 · 4 CVEs total

CVE-2021-21553 7.3 HIGH Dell Technologies Dell PowerScale OneFS 安全漏洞
CVE-2021-21563 6.5 MEDIUM DELL EMC PowerScale 代码问题漏洞
CVE-2021-21562 4.4 MEDIUM Dell Technologies Dell PowerScale OneFS代码问题漏洞

IV. Related Vulnerabilities

Same product: PowerScale OneFS
Same vendor: Dell
Same weakness: CWE-400

V. Comments for CVE-2021-21565

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