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CVE-2015-4103

UnknownEPSS 0.45%

Last modified

CVE-2015-4103 is a vulnerability of currently unknown severity. Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via vectors related to qemu and accessing spanning multiple fields.. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via vectors related to qemu and accessing spanning multiple fields.

Metrics

EPSS Probability
0.45%

35.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
XenXen3.3.0
XenXen3.3.1
XenXen3.3.2
XenXen3.4.0
XenXen3.4.1
XenXen3.4.2
XenXen3.4.3
XenXen3.4.4
XenXen4.0.1
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
XenXen4.1.6.1
XenXen4.2.0
XenXen4.2.1
XenXen4.2.2
XenXen4.2.3
XenXen4.3.0
XenXen4.3.1
XenXen4.3.2
XenXen4.3.4
XenXen4.4.0
XenXen4.4.1
XenXen4.5.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-4103?
Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via vectors related to qemu and accessing spanning multiple fields.
How severe is CVE-2015-4103?
Severity scoring for CVE-2015-4103 is pending analysis. The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.
How do I fix CVE-2015-4103?
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-2015-4103?

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

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Source: NVD / NIST