CVE-2023-32690

2023-06-0117:15:09

CWE-20

[email protected]

web.nvd.nist.gov

cve-2023-32690

libspdm

sample implementation

dmtf spdm specifications

cryptography

vulnerability

security issue

patch

workaround

nvd

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.002 Low

EPSS

Percentile

55.8%

JSON

libspdm is a sample implementation that follows the DMTF SPDM specifications. Prior to versions 2.3.3 and 3.0, 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.

A patch is available in version 2.3.3. A workaround is also available. After completion of VCA, the Requester can check the value of the Responder’s CTExponent. If it greater than or equal to 64, then the Requester can stop communication with the Responder.

Affected configurations

Vulners

NVD

Node

dmtflibspdmRange<2.3.3

VendorProductVersionCPE
dmtflibspdm*cpe:2.3:a:dmtf:libspdm:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
dmtf	libspdm	*	cpe:2.3:a:dmtf:libspdm::::::::

CNA Affected

[
  {
    "vendor": "DMTF",
    "product": "libspdm",
    "versions": [
      {
        "version": "< 2.3.3",
        "status": "affected"
      }
    ]
  }
]