Improper input validation in Oracle VM VirtualBox - CVE-2021-2442

Vulnerability identifier: #VU55100

CSH Severity: Low

CVSS v4: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H]

CVE-ID: CVE-2021-2442

CWE-ID: CWE-20

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local privileged user to a crash the entire system.

The vulnerability exists due to improper input validation within the Core component in Oracle VM VirtualBox. A local privileged user can exploit this vulnerability to a crash the entire system.

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

Install updates from vendor's website.

Oracle VM VirtualBox - update to 6.1.24
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/cpujul2021.html

• Multiple vulnerabilities in Oracle VM VirtualBox
• Arch Linux update for virtualbox
• Gentoo update for Oracle VirtualBox