Vulnerability identifier: #VU71458

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-22745

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
tpm2-tss
Other software / Other software solutions

Vendor: Linux TPM2 & TSS2 Software

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in "Tss2_RC_SetHandler" and "Tss2_RC_Decode". A remote attacker can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

tpm2-tss: 3.2.0 - 4.0.0

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External links
http://github.com/tpm2-software/tpm2-tss/commit/306490c8d848c367faa2d9df81f5e69dab46ffb5
http://github.com/tpm2-software/tpm2-tss/security/advisories/GHSA-4j3v-fh23-vx67

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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.