KLA11339
Multiple vulnerabilities in Oracle Virtual Box

Multiple serious vulnerabilities were found in Oracle VM Virtual Box. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service.

Below is a complete list of vulnerabilities:

1. Vulnerability in the Oracle VM VirtualBox component of Oracle Virtualization (subcomponent: Core) can be exploited by attacker and human interaction from a person other than the attacker remotely via VRDP network access to to bypass security restrictions;
2. Multiple vulnerabilities in the Oracle VM VirtualBox component of Oracle Virtualization (subcomponent: Core) can be exploited by attacker and human interaction from a person other than the attacker localy via logon to the infrastructure without authentication to bypass security restrictions;
3. Vulnerability in the Oracle VM VirtualBox component of Oracle Virtualization (subcomponent: Core) can be exploited remotely via using OpenSSL protocol to cause denial of service.

Technical details

Vulnerability (3) is related to OpenSSL vulnerability (Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o)). During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished.

Oracle VM Virtual Box versions earlier than 5.2.20

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Oracle Critical Patch Update Advisory – October 2018