Improper Enforcement of Message Integrity During Transmission in a Communication Channel Affecting nbdkit/nbdkit package, versions [,1.24.6)[1.25.0,1.26.5)[1.27.0,1.27.6)


Severity

Recommended
0.0
low
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (15th percentile)

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  • Snyk IDSNYK-UNMANAGED-NBDKITNBDKIT-2933203
  • published21 Jun 2022
  • disclosed21 Jun 2022
  • creditUnknown

Introduced: 21 Jun 2022

CVE-2021-3716  (opens in a new tab)
CWE-924  (opens in a new tab)

How to fix?

Upgrade nbdkit/nbdkit to version 1.24.6, 1.26.5, 1.27.6 or higher.

Overview

Affected versions of this package are vulnerable to Improper Enforcement of Message Integrity During Transmission in a Communication Channel due to improperly caching plaintext state across the STARTTLS encryption boundary. An attacker can inject a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client sends to the server, potentially leading the client to terminate the NBD session.

CVSS Base Scores

version 3.1