PT-2016-7821

CVE-2016-9777

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Published

2016-12-05

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Updated

2023-05-16

Description by

CVSS 3.1
7.8
High
MetricsAV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.8.12
Description The issue allows guest OS users to gain host OS privileges or cause a denial of service, resulting in an out-of-bounds array access and host OS crash, via a crafted interrupt request when I/O APIC is enabled. This is related to the files arch/x86/kvm/ioapic.c and arch/x86/kvm/ioapic.h.
Recommendations For Linux kernel versions prior to 4.8.12, update to version 4.8.12 or later to resolve the issue. As a temporary workaround, consider disabling I/O APIC to minimize the risk of exploitation.
Exploitability
Fix
Impacts
Researchers
Vendors
Affected products
Weakness enumeration
Related identifiers
ALT-PU-2016-2405
USN-3190-1
USN-3190-2
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