#VU72706 Out-of-bounds write in Trusted Platform Module (TPM) 2.0 - CVE-2023-1017

Vulnerability identifier: #VU72706

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-1017

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Trusted Platform Module (TPM) 2.0
Hardware solutions / Other hardware appliances

Vendor: Trusted Computing Group

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the CryptParameterDecryption routine. A remote attacker can trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Trusted Platform Module (TPM) 2.0: before 1.16

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External links
https://kb.cert.org/vuls/id/782720
https://trustedcomputinggroup.org/wp-content/uploads/TCGVRT0007-Advisory-FINAL.pdf
https://trustedcomputinggroup.org/about/security/
https://support.lenovo.com/us/en/product_security/LEN-118320
https://support.lenovo.com/us/en/product_security/LEN-118374

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.