CVEvulnerability
CVE-2016-9777
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2016-12-28
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-125
Description
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.
Affected configurations
• linux linux kernel (>= 4.8 < 4.8.12)
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755 Patch, Vendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12 Release Notes
- http://www.openwall.com/lists/oss-security/2016/12/02/2 Mailing List, Patch
- http://www.securityfocus.com/bid/94640 Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1400804 Issue Tracking
- https://github.com/torvalds/linux/commit/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755 Patch, Vendor Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755 Patch, Vendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12 Release Notes
- http://www.openwall.com/lists/oss-security/2016/12/02/2 Mailing List, Patch
- http://www.securityfocus.com/bid/94640 Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1400804 Issue Tracking
- https://github.com/torvalds/linux/commit/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755 Patch, Vendor Advisory