CVE-2016-9777

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.

Score

CVSS 3.1 7.8 High

Status

Modified - secalert@redhat.com

Published

2016-12-28

Last modified

2024-08-06

Weaknesses

CWE-125

Affected products

• Linux Kernel (Linux)

References

• 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
• http://www.openwall.com/lists/oss-security/2016/12/02/2
• http://www.securityfocus.com/bid/94640
• https://bugzilla.redhat.com/show_bug.cgi?id=1400804
• https://github.com/torvalds/linux/commit/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755