SB2024082638 - SUSE update for xen

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Main Vulnerability Database SB2024082638

SB2024082638 - SUSE update for xen

Published: August 26, 2024

Security Bulletin ID SB2024082638
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Improper error handling (CVE-ID: CVE-2024-31145)

CWE-ID: CWE-388 - Error Handling

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


The vulnerability allows a malicious guest to escalate privileges on the system.

The vulnerability exists due to improper error handling in x86 IOMMU identity mapping. A malicious guest can access memory regions related to other guests or the hypervisor.


2) Resource management error (CVE-ID: CVE-2024-31146)

CWE-ID: CWE-399 - Resource Management Errors

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


The vulnerability allows a malicious guest to escalate privileges on the system.

The vulnerability exists due to improper management of shared resources when using PCI pass-through. A malicious guest can escalate privileges on the system.


3) Improper locking (CVE-ID: CVE-2024-31143)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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 double unlock in x86 guest IRQ handling. An optional feature of PCI MSI called "Multiple Message" allows a device to use multiple consecutive interrupt vectors. A malicious guest can crash the hypervisor.


Remediation

Install update from vendor's website.

References