Improper Input Validation Affecting DMTF/libspdm package, versions [,2.3.3)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.2% (59th percentile)

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  • Snyk IDSNYK-UNMANAGED-DMTFLIBSPDM-5672436
  • published8 Jun 2023
  • disclosed8 Jun 2023
  • creditNVIDIA Offensive Security Research

Introduced: 8 Jun 2023

CVE-2023-32690  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade DMTF/libspdm to version 2.3.3 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation. Following a successful CAPABILITIES response, a libspdm Requester stores the Responder's CTExponent into its context without validation. If the Requester sends a request message that requires a cryptography operation by the Responder, such as CHALLENGE, libspdm will calculate the timeout value using the Responder's unvalidated CTExponent.

Workaround

After completion of VCA, the Requester can check the value of the Responder's CTExponent. If it is greater than or equal to 64, then the Requester can stop communication with the Responder.

CVSS Scores

version 3.1