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."
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2015-8554 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
Base Score | 6.5 |
---|---|
Base Metrics | AV:A/AC:H/Au:S/C:C/I:C/A:C |
Access Vector | Adjacent Network |
Access Complexity | High |
Authentication | Single |
Confidentiality Impact | Complete |
Integrity Impact | Complete |
Availability Impact | Complete |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Platform | Package | State |
---|---|---|
Red Hat Enterprise Linux 5 | xen | Will not fix |