Path traversal in Oracle VM VirtualBox - CVE-2022-21394

Vulnerability identifier: #VU59809

CSH Severity: Low

CVSS v4: 8.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N]

CVE-ID: CVE-2022-21394

CWE-ID: CWE-22

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences within the implementation of the TFTP server. A local user can view files on the system.

Oracle VM VirtualBox
Gentoo Linux
app-emulation/virtualbox
app-emulation/virtualbox-additions
app-emulation/virtualbox-extpack-oracle
app-emulation/virtualbox-guest-additions
app-emulation/virtualbox-modules

Install update from vendor's website.

Oracle VM VirtualBox - update to 6.1.32
app-emulation/virtualbox - update to 6.1.36
app-emulation/virtualbox-additions - update to 6.1.36
app-emulation/virtualbox-extpack-oracle - update to 6.1.36
app-emulation/virtualbox-guest-additions - update to 6.1.36
app-emulation/virtualbox-modules - update to 6.1.36

• https://www.oracle.com/security-alerts/cpujan2022.html
• https://www.zerodayinitiative.com/advisories/ZDI-22-128/

• Multiple vulnerabilities in Oracle VirtualBox
• Gentoo update for Oracle VirtualBox