CVE-2023-32690

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/DMTF/libspdm/issues/2068	Patch
https://github.com/DMTF/libspdm/pull/2069	Patch
https://github.com/DMTF/libspdm/security/advisories/GHSA-56h8-4gv5-jf2c	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:dmtf:libspdm:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2023-06-01 17:15

Updated : 2023-06-09 17:52

NVD link : CVE-2023-32690

Mitre link : CVE-2023-32690

CVE.ORG link : CVE-2023-32690

JSON object : View

Products Affected

dmtf

libspdm

CWE

NVD-CWE-noinfo CWE-20

Improper Input Validation

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