SB2025090953 - Two vulnerabilities in Xen on ARM systems

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Main Vulnerability Database SB2025090953

SB2025090953 - Two vulnerabilities in Xen on ARM systems

Published: September 9, 2025

Security Bulletin ID SB2025090953
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) NULL pointer dereference (CVE-ID: CVE-2025-58144)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H/E:U/U:Green


The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when mapping pages belonging to other domains. A malicious guest can perform a denial of service (DoS) attack.

Note, the vulnerability affects ARM-based systems.


2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2025-58145)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:U/U:Green


The vulnerability allows a malicious guest to gain access to sensitive information.

The vulnerability exists due to incorrect implementation of the P2M lock when obtaining page references. A malicious guest can gain access to sensitive information and escalate privileges on the hypervisor. 

Note, the vulnerability affects ARM-based systems.


Remediation

Install update from vendor's website.

References