CVE & CISA-KEV Catalog

CVE-2017-12154

HIGH
7.1
CVSS v3
NVD

Description

The prepare_vmcs02 function in arch/x86/kvm/vmx.c in the Linux kernel through 4.13.3 does not ensure that the "CR8-load exiting" and "CR8-store exiting" L0 vmcs02 controls exist in cases where L1 omits the "use TPR shadow" vmcs12 control, which allows KVM L2 guest OS users to obtain read and write access to the hardware CR8 register.

How to fix

Remediation Available
linuxDebian
Fixed in:4.12.13-1CVE-2017-12154
Fixed in:4.12.13-1CVE-2017-12154
Fixed in:4.12.13-1CVE-2017-12154
Fixed in:4.12.13-1CVE-2017-12154
linuxUbuntu
Fixed in:3.13.0-153.203USN-3698-1
Fixed in:4.4.0-98.121USN-3469-1
linux-awsUbuntu
Fixed in:4.4.0-1039.48USN-3469-1
linux-gkeUbuntu
Fixed in:4.4.0-1033.33USN-3469-1
linux-image-3.13.0-153-genericUbuntu
Fixed in:3.13.0-153.203USN-3698-1
linux-image-3.13.0-153-generic-lpaeUbuntu
Fixed in:3.13.0-153.203USN-3698-1
linux-image-3.13.0-153-lowlatencyUbuntu
Fixed in:3.13.0-153.203USN-3698-1
linux-image-3.13.0-153-powerpc-e500Ubuntu
Fixed in:3.13.0-153.203USN-3698-1
linux-image-3.13.0-153-powerpc-e500mcUbuntu
Fixed in:3.13.0-153.203USN-3698-1
linux-image-3.13.0-153-powerpc-smpUbuntu
Fixed in:3.13.0-153.203USN-3698-1
linux-image-3.13.0-153-powerpc64-embUbuntu
Fixed in:3.13.0-153.203USN-3698-1
linux-image-3.13.0-153-powerpc64-smpUbuntu
Fixed in:3.13.0-153.203USN-3698-1
linux-image-4.4.0-1009-kvmUbuntu
Fixed in:4.4.0-1009.14USN-3469-1
linux-image-4.4.0-1033-gkeUbuntu
Fixed in:4.4.0-1033.33USN-3469-1
linux-image-4.4.0-1039-awsUbuntu
Fixed in:4.4.0-1039.48USN-3469-1
linux-image-4.4.0-1076-raspi2Ubuntu
Fixed in:4.4.0-1076.84USN-3469-1
linux-image-4.4.0-1078-snapdragonUbuntu
Fixed in:4.4.0-1078.83USN-3469-1
linux-image-4.4.0-98-genericUbuntu
Fixed in:4.4.0-98.121~14.04.1USN-3469-2
Fixed in:4.4.0-98.121USN-3469-1
linux-image-4.4.0-98-generic-lpaeUbuntu
Fixed in:4.4.0-98.121~14.04.1USN-3469-2
Fixed in:4.4.0-98.121USN-3469-1
linux-image-4.4.0-98-lowlatencyUbuntu
Fixed in:4.4.0-98.121~14.04.1USN-3469-2
Fixed in:4.4.0-98.121USN-3469-1
linux-image-4.4.0-98-powerpc-e500mcUbuntu
Fixed in:4.4.0-98.121~14.04.1USN-3469-2
Fixed in:4.4.0-98.121USN-3469-1
linux-image-4.4.0-98-powerpc-smpUbuntu
Fixed in:4.4.0-98.121~14.04.1USN-3469-2
Fixed in:4.4.0-98.121USN-3469-1
linux-image-4.4.0-98-powerpc64-embUbuntu
Fixed in:4.4.0-98.121~14.04.1USN-3469-2
Fixed in:4.4.0-98.121USN-3469-1
linux-image-4.4.0-98-powerpc64-smpUbuntu
Fixed in:4.4.0-98.121~14.04.1USN-3469-2
Fixed in:4.4.0-98.121USN-3469-1
linux-kvmUbuntu
Fixed in:4.4.0-1009.14USN-3469-1
linux-lts-xenialUbuntu
Fixed in:4.4.0-98.121~14.04.1USN-3469-2
linux-raspi2Ubuntu
Fixed in:4.4.0-1076.84USN-3469-1
linux-snapdragonUbuntu
Fixed in:4.4.0-1078.83USN-3469-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityNone

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

0.51%probability of exploitation in 30 days
40thpercentile

Low risk: more likely to be exploited than 40% of all known CVEs.

References

Third-Party Advisory1
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CVE-2017-12154 severity badge

Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.