What’s Vulnerable › Vulnerabilities

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

• Severity: low (CVSS 2.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-05-13 · updated 2026-06-17
• Weakness: CWE-532

Description

It was discovered that the Subiquity installer for Ubuntu Server logged the LUKS full disk encryption password if one was entered.

Affected products

• Canonical Ltd. subiquity: before 20.05.2 — fixed in 20.05.2

How to fix

Upgrade to a fixed version: Canonical Ltd. subiquity 20.05.2. Check the vendor advisory for mitigations.

References

• https://aliceandbob.company/the-human-factor-in-an-economy-of-scale/
• https://github.com/CanonicalLtd/subiquity/commit/7db70650feaf513d7fb6f1ca07f2d670a0890613
• https://aliceandbob.company/the-human-factor-in-an-economy-of-scale/
• https://github.com/CanonicalLtd/subiquity/commit/7db70650feaf513d7fb6f1ca07f2d670a0890613

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