Vulnerability identifier: #VU75305

Vulnerability risk: Low

CVSSv3.1: 7.1 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-21987

CWE-ID: CWE-121

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Oracle VM VirtualBox
Server applications / Virtualization software

Vendor: Oracle

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the handling of TPM MMIO. A local privileged user can trigger a stack-based buffer overflow and execute arbitrary code in the context of the hypervisor.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Oracle VM VirtualBox: 6.1.0 - 6.1.43, 7.0.0 - 7.0.6

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External links
http://www.oracle.com/security-alerts/cpuapr2023.html
http://www.zerodayinitiative.com/advisories/ZDI-23-487/

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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