Xen CVE-2019-17341 Privilege Escalation Vulnerability

Description

Xen is prone to a privilege-escalation vulnerability. An attacker can exploit this issue to gain elevated privileges.

Technologies Affected

• Xen Xen 2.0
• Xen Xen 3.0.2
• Xen Xen 3.0.3
• Xen Xen 3.0.4
• Xen Xen 3.1
• Xen Xen 3.1.3
• Xen Xen 3.1.4
• Xen Xen 3.2
• Xen Xen 3.2.0
• Xen Xen 3.2.1
• Xen Xen 3.2.2
• Xen Xen 3.2.3
• Xen Xen 3.3
• Xen Xen 3.3.0
• Xen Xen 3.3.1
• Xen Xen 3.3.2
• Xen Xen 3.4
• Xen Xen 3.4.0
• Xen Xen 3.4.1
• Xen Xen 3.4.2
• Xen Xen 3.4.3
• Xen Xen 3.4.4
• Xen Xen 4.0
• Xen Xen 4.0.0
• Xen Xen 4.0.1
• Xen Xen 4.0.2
• Xen Xen 4.0.3
• Xen Xen 4.0.4
• Xen Xen 4.1
• Xen Xen 4.1.0
• Xen Xen 4.1.1
• Xen Xen 4.1.2
• Xen Xen 4.1.3
• Xen Xen 4.1.4
• Xen Xen 4.1.5
• Xen Xen 4.1.6.1
• Xen Xen 4.10
• Xen Xen 4.10.0
• Xen Xen 4.10.1
• Xen Xen 4.10.2
• Xen Xen 4.11.0
• Xen Xen 4.2
• Xen Xen 4.2.0
• Xen Xen 4.2.1
• Xen Xen 4.2.2
• Xen Xen 4.2.3
• Xen Xen 4.3
• Xen Xen 4.3.0
• Xen Xen 4.3.0-1
• Xen Xen 4.3.1
• Xen Xen 4.4
• Xen Xen 4.4.0
• Xen Xen 4.4.1
• Xen Xen 4.5
• Xen Xen 4.5.0
• Xen Xen 4.5.3
• Xen Xen 4.6.0
• Xen Xen 4.6.3
• Xen Xen 4.7.0
• Xen Xen 4.8
• Xen Xen 4.8.0
• Xen Xen 4.8.4
• Xen Xen 4.9
• Xen Xen 4.9.0
• Xen Xen 4.9.1
• Xen Xen 4.9.2
• Xen Xen 4.9.3

Recommendations

Disable all unnecessary services.
Use access controls to regulate external access to all services that are not intended to be publicly available.

Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, always run nonadministrative software as an unprivileged user with minimal access rights.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include NOP sleds and unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Updates are available. Please see the references or vendor advisory for more information.