#VU75311 Access of Uninitialized Pointer in Oracle VM VirtualBox - CVE-2023-21988

Vulnerability identifier: #VU75311

Vulnerability risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-21988

CWE-ID: CWE-824

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 gain access to sensitive information.

The vulnerability exists due to access to uninitialized memory within the handling of GPA requests. A local privileged user can gain access to sensitive information.

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

---

External links
https://www.oracle.com/security-alerts/cpuapr2023.html
https://www.zerodayinitiative.com/advisories/ZDI-23-486/

---

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.