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CVE-2020-11932— Subiquity server installer logged LUKS full disk encryption password

Quick assessment

Affected
Canonical Subiquity
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Canonical Subiquity是英国科能（Canonical）公司的一款Ubuntu服务器安装程序。 Canonical Subiquity（使用在Ubuntu Server）中存在日志信息泄露漏洞。该漏洞源于网络系统或产品的日志文件非正常输出。

CVSS 2.3 · Low EPSS 0.59% · P46

Possible ATT&CK Techniques 1 AI

T1552.002 · Credentials in Registry
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I. Basic Information for CVE-2020-11932

Vulnerability Information
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Vulnerability Title
Subiquity server installer logged LUKS full disk encryption password
Source: CVE Program / CVE List V5
Vulnerability Description
It was discovered that the Subiquity installer for Ubuntu Server logged the LUKS full disk encryption password if one was entered.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Canonical Subiquity 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Canonical Subiquity是英国科能（Canonical）公司的一款Ubuntu服务器安装程序。 Canonical Subiquity（使用在Ubuntu Server）中存在日志信息泄露漏洞。该漏洞源于网络系统或产品的日志文件非正常输出。
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
Canonical Subiquity unspecified ~ 20.05.2 -

II. Public POCs for CVE-2020-11932

# POC Description Source Link Shenlong Link
1 Double-Free BUG in WhatsApp exploit poc. https://github.com/ProjectorBUg/CVE-2020-11932 POC Details
2 Check CVE-2020-11932 (ubuntu server) and test host relating to this vulnerability https://github.com/Staubgeborener/CVE-2020-11932 POC Details
3 None https://github.com/code-developers/CVE-2020-11932 POC Details
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III. Intelligence Information for CVE-2020-11932

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Patches & Fixes for CVE-2020-11932 (1)

Other References for CVE-2020-11932 (1)

IV. Related Vulnerabilities

Same product: Subiquity
Same vendor: Canonical
Same weakness: CWE-532

V. Comments for CVE-2020-11932

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