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CVE-2021-21285— Docker daemon crash during image pull of malicious image

Quick assessment

Affected
moby moby
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.

Docker是美国Docker公司的一款开源的应用容器引擎。该产品支持在Linux系统上创建一个容器（轻量级虚拟机）并部署和运行应用程序，以及通过配置文件实现应用程序的自动化安装、部署和升级。 Docker 9.03.15版本之前和 20.10.3 版本之前存在代码问题漏洞，攻击者可以利用该漏洞导致dockerd守护进程崩溃。

CVSS 6.5 · Medium EPSS 3.29% · P88

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-21285

Vulnerability Information
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Vulnerability Title
Docker daemon crash during image pull of malicious image
Source: CVE Program / CVE List V5
Vulnerability Description
In Docker before versions 9.03.15, 20.10.3 there is a vulnerability in which pulling an intentionally malformed Docker image manifest crashes the dockerd daemon. Versions 20.10.3 and 19.03.15 contain patches that prevent the daemon from crashing.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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
Docker 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Docker是美国Docker公司的一款开源的应用容器引擎。该产品支持在Linux系统上创建一个容器（轻量级虚拟机）并部署和运行应用程序，以及通过配置文件实现应用程序的自动化安装、部署和升级。 Docker 9.03.15版本之前和 20.10.3 版本之前存在代码问题漏洞，攻击者可以利用该漏洞导致dockerd守护进程崩溃。
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
moby moby < 19.03.15 -

II. Public POCs for CVE-2021-21285

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III. Intelligence Information for CVE-2021-21285

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Patches & Fixes for CVE-2021-21285 (1)

Vendor Advisories for CVE-2021-21285 (4)

Other References for CVE-2021-21285 (3)

IV. Related Vulnerabilities

Same product: moby
Same vendor: moby
Same weakness: CWE-400

V. Comments for CVE-2021-21285

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