🛡️ CVE-2023-32690
🟡 CVSS 5.7 — Medium ✅ No Known Exploit CWE-20 NVD
5.7
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity MEDIUM
CVSS Score 5.7
CVSS Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE CWE-20
Public Exploit ✅ No
Source NVD
Published 2023-06-01
Updated 2026-06-08
Modified 2024-11-21

Affected Packages

Software From version Fixed in
libspdm — 2.3.3

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