QID 377773

QID 377773: Citrix XenServer Security Update (CTX390511)

A security issue has been identified that affects Citrix Hypervisor. This issue may allow privileged code in a guest VM to cause the host to crash or become unresponsive. The issue only affects systems with Intel CPUs where the malicious guest VM has had a physical PCI device assigned to it by the host administrator using the PCI passthrough feature. The issue has the following identifier: CVE-2022-26357

Affected Products:
Citrix XenServer 7.1 CU2 LTSR Note: This QID will detect only for Citrix XenServer 7.1 CU2 LTSR

QID Detection Logic (Authenticated):
OS:Citrix XenServer
The QID checks if Hotfixes is applied on the vulnerable versions of Citrix XenServer.

Vulnerable version may allow privileged code in a guest VM to cause the host to crash or become unresponsive.

  • CVSS V3 rated as High - 7 severity.
  • CVSS V2 rated as High - 6.2 severity.
    • Solution

    Hotfixes have been released for Citrix XenServer to address these issues. Refer to CTX390511 to obtain more information.

    Vendor References

    CVEs related to QID 377773

    CVE-2022-26357 |
    Software Advisories
    Advisory ID Software Component Link
    CTX390511 URL Logo support.citrix.com/article/CTX390511/citrix-hypervisor-security-update
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