CVE-2025-58143 Affecting xen package, versions <4.18.5_06-150600.3.31.2


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.06% (19th percentile)

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  • Snyk IDSNYK-SLES156-XEN-13723679
  • published28 Oct 2025
  • disclosed27 Oct 2025

Introduced: 27 Oct 2025

NewCVE-2025-58143  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 xen to version 4.18.5_06-150600.3.31.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]

There are multiple issues related to the handling and accessing of guest memory pages in the viridian code:

  1. A NULL pointer dereference in the updating of the reference TSC area. This is CVE-2025-27466.

  2. A NULL pointer dereference by assuming the SIM page is mapped when a synthetic timer message has to be delivered. This is CVE-2025-58142.

  3. A race in the mapping of the reference TSC page, where a guest can get Xen to free a page while still present in the guest physical to machine (p2m) page tables. This is CVE-2025-58143.

CVSS Base Scores

version 3.1