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CVE-2021-23218— Memory Leak in Mirantis Container Runtime (MCR) running in FIPS mode causes a Denial of Service

Quick assessment

Affected
Mirantis Mirantis Container Runtime
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.

Mirantis Container Runtime是美国Mirantis公司的一种高级运行时。用于在任何基板上高效地运行 Swarm 和 Kubernetes 容器。 Mirantis Container Runtime 20.10.8 存在安全漏洞，该漏洞源于 TLS 握手期间会泄漏内存，这可能会被滥用以导致拒绝服务。

CVSS 5.3 · Medium EPSS 0.90% · P59

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-23218

Vulnerability Information
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Vulnerability Title
Memory Leak in Mirantis Container Runtime (MCR) running in FIPS mode causes a Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
When running with FIPS mode enabled, Mirantis Container Runtime 20.10.8 leaks memory during TLS Handshakes which could be abused to cause a denial of service.
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
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: CVE Program / CVE List V5
Vulnerability Title
Mirantis Container Runtime 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mirantis Container Runtime是美国Mirantis公司的一种高级运行时。用于在任何基板上高效地运行 Swarm 和 Kubernetes 容器。 Mirantis Container Runtime 20.10.8 存在安全漏洞，该漏洞源于 TLS 握手期间会泄漏内存，这可能会被滥用以导致拒绝服务。
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
Mirantis Mirantis Container Runtime 20.10.8 -

II. Public POCs for CVE-2021-23218

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III. Intelligence Information for CVE-2021-23218

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Other References for CVE-2021-23218 (1)

Same Patch Batch · Mirantis · 2022-01-10 · 3 CVEs total

CVE-2021-44458 8.3 HIGH Lack of websocket authentication in Lens causes remote code execution when visiting a mali
CVE-2021-23154 6.3 MEDIUM Command injection in Lens causes arbitrary shell command execution when malicious custom h

IV. Related Vulnerabilities

Same vendor: Mirantis
Same weakness: CWE-401

V. Comments for CVE-2021-23218

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