Security readout for executives and security teams
This is a denial-of-service issue in Xen PCI passthrough setups. A privileged administrator inside a guest VM could force repeated warning messages in the Linux PCI backend driver, consuming disk space in the driver domain. The risk is concentrated in older x86 Xen environments using affected Linux driver-domain kernels and MSI/MSI-X capable passed-through PCI devices. Exposure is likely limited to Xen virtualization hosts using PCI passthrough with an affected Linux driver-domain kernel. General Xen deployments without PCI passthrough, non-x86 systems, or environments without guest-admin access to MSI/MSI-X capable devices are not indicated as exposed by the provided sources. Prioritize remediation where Xen hosts run multi-tenant or less-trusted guest workloads with PCI passthrough. For isolated, trusted administrative environments, treat as a controlled maintenance issue, but still patch because driver-domain disk exhaustion can affect host availability. Mitigation focus: Review Xen XSA-157 and relevant Linux distribution advisories for fixed packages.; Update affected Linux driver-domain kernels according to vendor guidance.; Restrict PCI passthrough to trusted guest administrators only..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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CVE-2015-8552 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- GLSA-201604-03CVE reference · vendor-advisory, x_refsource_GENTOO
Products and packages named in the record
CWE details
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