CVE-2015-8552

UnknownEPSS 0.45%

Last modified

CVE-2015-8552 is a vulnerability of currently unknown severity. The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to generate a continuous stream of WARN messages and cause a denial of service (disk consumption) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and XEN_PCI_OP_enable_msi operations, aka "Linux pciback missing sanity checks.". EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to generate a continuous stream of WARN messages and cause a denial of service (disk consumption) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and XEN_PCI_OP_enable_msi operations, aka "Linux pciback missing sanity checks."

Metrics

EPSS Probability
0.45%

35.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
XenXen3.1.3
XenXen3.1.4
XenXen3.2.0
XenXen3.2.1
XenXen3.2.2
XenXen3.2.3
XenXen3.3.0
XenXen3.3.1
XenXen3.3.2
XenXen3.4.0
XenXen3.4.1
XenXen3.4.2
XenXen3.4.3
XenXen3.4.4
XenXen4.0.0
XenXen4.0.1
XenXen4.0.2
XenXen4.0.3
XenXen4.0.4
XenXen4.1.0
XenXen4.1.1
XenXen4.1.2
XenXen4.1.3
XenXen4.1.4
XenXen4.1.5
XenXen4.1.6
XenXen4.1.6.1
XenXen4.2.0
XenXen4.2.1
XenXen4.2.2
XenXen4.2.3
XenXen4.2.4
XenXen4.2.5
XenXen4.3.0
XenXen4.3.1
XenXen4.3.2
XenXen4.3.3
XenXen4.3.4
CanonicalUbuntu Linux12.04
DebianDebian Linux6.0
NovellSuse Linux Enterprise Debuginfo11Sp4
NovellSuse Linux Enterprise Real Time Extension11Sp4
NovellSuse Linux Enterprise Real Time Extension12Sp1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-8552?
The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to generate a continuous stream of WARN messages and cause a denial of service (disk consumption) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and XEN_PCI_OP_enable_msi operations, aka "Linux pciback missing sanity checks."
How severe is CVE-2015-8552?
Severity scoring for CVE-2015-8552 is pending analysis. The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.
How do I fix CVE-2015-8552?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8552?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST