CVE-2023-1017: TPM2.0 vulnerable to out-of-bounds write

Vulnerability summary

CVE-2023-1017 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in microsoft windows_10_1507. EPSS estimates a 1.29% chance of exploitation in the next 30 days, higher than 69.9% of scored vulnerabilities.

Timeline

1. 28-02-2023
   PublishedVulnerability first disclosed.
2. 04-11-2025
   Last modifiedVulnerability information updated.

Description

An out-of-bounds write vulnerability exists in TPM2.0's Module Library allowing writing of a 2-byte data past the end of TPM2.0 command in the CryptParameterDecryption routine. An attacker who can successfully exploit this vulnerability can lead to denial of service (crashing the TPM chip/process or rendering it unusable) and/or arbitrary code execution in the TPM context.

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.