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CVE
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CVE-2016-9777Date: (C)2016-12-29   (M)2023-12-22


KVM in the Linux kernel before 4.8.12, when I/O APIC is enabled, does not properly restrict the VCPU index, which allows guest OS users to gain host OS privileges or cause a denial of service (out-of-bounds array access and host OS crash) via a crafted interrupt request, related to arch/x86/kvm/ioapic.c and arch/x86/kvm/ioapic.h.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.8CVSS Score : 6.9
Exploit Score: 1.1Exploit Score: 3.4
Impact Score: 6.0Impact Score: 10.0
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: HIGHAccess Complexity: MEDIUM
Privileges Required: LOWAuthentication: NONE
User Interaction: NONEConfidentiality: COMPLETE
Scope: CHANGEDIntegrity: COMPLETE
Confidentiality: HIGHAvailability: COMPLETE
Integrity: HIGH 
Availability: HIGH 
  
Reference:
BID-94640
http://www.openwall.com/lists/oss-security/2016/12/02/2
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12
https://bugzilla.redhat.com/show_bug.cgi?id=1400804
https://github.com/torvalds/linux/commit/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755

CWE    1
CWE-125
OVAL    4
oval:org.secpod.oval:def:111726
oval:org.secpod.oval:def:111713
oval:org.secpod.oval:def:703450
oval:org.secpod.oval:def:703463
...

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