Information Exposure Affecting tpm2-software/tpm2-tools package, versions [,4.3.2)[5.1,5.1.1)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.08% (36th percentile)

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  • Snyk IDSNYK-UNMANAGED-TPM2SOFTWARETPM2TOOLS-2364189
  • published26 Jan 2022
  • disclosed4 Jun 2021
  • creditUnknown

Introduced: 4 Jun 2021

CVE-2021-3565  (opens in a new tab)
CWE-200  (opens in a new tab)
CWE-665  (opens in a new tab)

How to fix?

Upgrade tpm2-software/tpm2-tools to version 4.3.2, 5.1.1 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure. A flaw was found in tpm2-tools in versions before 5.1.1 and before 4.3.2. tpm2_import used a fixed AES key for the inner wrapper, potentially allowing a MITM attacker to unwrap the inner portion and reveal the key being imported. The highest threat from this vulnerability is to data confidentiality.

CVSS Scores

version 3.1