CVE Catalog

CVE-2015-8554

High
Published: Translated: NVD NIST

Summary

Buffer overflow in hw/pt-msi.c in Xen 4.6.x and earlier, when using the qemu-xen-traditional device model, allows local x86 HVM guest administrators to gain privileges by leveraging a system with access to a passed-through MSI-X capable physical PCI device and MSI-X table entries, related to a 'write path.'

Risk Assessment

This vulnerability may allow local guest administrators to escalate privileges, posing a serious security threat to the system. Consequently, an attacker could gain unauthorized access to system resources.

Recommendation

It is recommended to upgrade to a newer version of Xen that does not contain this vulnerability. Additionally, access to MSI-X capable physical PCI devices should be restricted to trusted administrators.

Related vulnerabilities

Original NVD description (English source)

Buffer overflow in hw/pt-msi.c in Xen 4.6.x and earlier, when using the qemu-xen-traditional (aka qemu-dm) device model, allows local x86 HVM guest administrators to gain privileges by leveraging a system with access to a passed-through MSI-X capable physical PCI device and MSI-X table entries, related to a "write path."

Vulnerability data from NVD (NIST) · CISA KEV · EPSS