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CVE-2020-29480

2.3 · LOW
Published Dec 15, 2020 xen CWE-862 EPSS 0.31% (23th pctl)

Overview

CVE-2020-29480 is a low-severity vulnerability affecting xen xen. It was published on December 15, 2020 and has a CVSS 3.1 base score of 2.3 (LOW).

This vulnerability has a CVSS 3.1 base score of 2.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

An issue was discovered in Xen through 4.14.x. Neither xenstore implementation does any permission checks when reporting a xenstore watch event. A guest administrator can watch the root xenstored node, which will cause notifications for every created, modified, and deleted key. A guest administrator can also use the special watches, which will cause a notification every time a domain is created and destroyed. Data may include: number, type, and domids of other VMs; existence and domids of driver domains; numbers of virtual interfaces, block devices, vcpus; existence of virtual framebuffers and their backend style (e.g., existence of VNC service); Xen VM UUIDs for other domains; timing information about domain creation and device setup; and some hints at the backend provisioning of VMs and their devices. The watch events do not contain values stored in xenstore, only key names. A guest administrator can observe non-sensitive domain and device lifecycle events relating to other guests. T

Remediation

Check the references section for vendor advisories and patches from xen. Update xen to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status
xen xen 0 Affected

Frequently Asked Questions

What is CVE-2020-29480?

CVE-2020-29480 is a low-severity vulnerability affecting xen xen. It was published on December 15, 2020 and has a CVSS 3.1 base score of 2.3 (LOW).

How severe is CVE-2020-29480?

This vulnerability has a CVSS 3.1 base score of 2.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-29480?

Check the references section for vendor advisories and patches from xen. Update xen to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-29480?

CyberStrike's AI-powered security agents can automatically detect CVE-2020-29480 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.