CVE-2016-9777
published 2016-12-28CVE-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…
PriorityP338high7.8CVSS 3.1
AVLACHPRLUINSCCHIHAH
EPSS
0.38%
30.8th percentile
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
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 4.8.15-1 (bookworm) | linux 4.8.15-1 (bookworm) |
| linux | linux_kernel | >= 0 < 4.8.15-1 | 4.8.15-1 |
| linux | linux_kernel | >= 0 < 4.8.15-1 | 4.8.15-1 |
| linux | linux_kernel | >= 0 < 4.8.15-1 | 4.8.15-1 |
| linux | linux_kernel | >= 0 < 4.8.15-1 | 4.8.15-1 |
| linux | linux_kernel | >= 4.8 < 4.8.12 | 4.8.12 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
nvdv2.06.9MEDIUMAV:L/AC:M/Au:N/C:C/I:C/A:C
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu5.5MEDIUM
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GHSA
GHSA-2x32-fffh-53mr: KVM in the Linux kernel before 4
ghsa_unreviewed·2022-05-17
CVE-2016-9777 [HIGH] CWE-125 GHSA-2x32-fffh-53mr: KVM in the Linux kernel before 4
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.
OSV
CVE-2016-9777: KVM in the Linux kernel before 4
osv·2016-12-28·CVSS 7.8
CVE-2016-9777 [HIGH] CVE-2016-9777: KVM in the Linux kernel before 4
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.
Ubuntu
Linux kernel (Raspberry Pi 2) vulnerabilities
vendor_ubuntu·2017-02-10·CVSS 5.5
CVE-2016-10147 [MEDIUM] Linux kernel (Raspberry Pi 2) vulnerabilities
Title: Linux kernel (Raspberry Pi 2) vulnerabilities
Summary: Several security issues were fixed in the kernel.
Mikulas Patocka discovered that the asynchronous multibuffer cryptographic
daemon (mcryptd) in the Linux kernel did not properly handle being invoked
with incompatible algorithms. A local attacker could use this to cause a
denial of service (system crash). (CVE-2016-10147)
It was discovered that a use-after-free existed in the KVM susbsystem of
the Linux kernel when creating devices. A local attacker could use this to
cause a denial of service (system crash). (CVE-2016-10150)
Qidan He discovered that the ICMP implementation in the Linux kernel did
not properly check the size of an ICMP header. A local attacker with
CAP_NET_ADMIN could use this to expose sensitive information.
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2017-02-03·CVSS 5.5
CVE-2016-10147 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the kernel.
Mikulas Patocka discovered that the asynchronous multibuffer cryptographic
daemon (mcryptd) in the Linux kernel did not properly handle being invoked
with incompatible algorithms. A local attacker could use this to cause a
denial of service (system crash). (CVE-2016-10147)
It was discovered that a use-after-free existed in the KVM susbsystem of
the Linux kernel when creating devices. A local attacker could use this to
cause a denial of service (system crash). (CVE-2016-10150)
Qidan He discovered that the ICMP implementation in the Linux kernel did
not properly check the size of an ICMP header. A local attacker with
CAP_NET_ADMIN could use this to expose sensitive information.
(CVE-2016-8399)
Red Hat
Kernel: kvm: out of bounds memory access via vcpu_id
vendor_redhat·2016-11-23·CVSS 7.8
CVE-2016-9777 [HIGH] CWE-787 Kernel: kvm: out of bounds memory access via vcpu_id
Kernel: kvm: out of bounds memory access via vcpu_id
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.
Statement: This issue does not affect the versions of the kernel package as shipped with
Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2.
Package: kernel (Red Hat Enterprise Linux 5) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Package: real
Debian
CVE-2016-9777: linux - KVM in the Linux kernel before 4.8.12, when I/O APIC is enabled, does not proper...
vendor_debian·2016·CVSS 7.8
CVE-2016-9777 [HIGH] CVE-2016-9777: linux - KVM in the Linux kernel before 4.8.12, when I/O APIC is enabled, does not proper...
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.
Scope: local
bookworm: resolved (fixed in 4.8.15-1)
bullseye: resolved (fixed in 4.8.15-1)
forky: resolved (fixed in 4.8.15-1)
sid: resolved (fixed in 4.8.15-1)
trixie: resolved (fixed in 4.8.15-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-9777 Kernel: kvm: out of bounds memory access via vcpu_id [fedora-all]
bugzilla·2016-12-02·CVSS 7.8
CVE-2016-9777 [HIGH] CVE-2016-9777 Kernel: kvm: out of bounds memory access via vcpu_id [fedora-all]
CVE-2016-9777 Kernel: kvm: out of bounds memory access via vcpu_id [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions o
Bugzilla
CVE-2016-9777 Kernel: kvm: out of bounds memory access via vcpu_id
bugzilla·2016-12-02·CVSS 7.8
CVE-2016-9777 [HIGH] CVE-2016-9777 Kernel: kvm: out of bounds memory access via vcpu_id
CVE-2016-9777 Kernel: kvm: out of bounds memory access via vcpu_id
Linux kernel built with the Kernel-based Virtual Machine(CONFIG_KVM) support
is vulnerable to an out-of-bounds memory access issue. It could occur on x86
platform, while servicing I/O APIC requests with larger vcpu_id.
A guest user/process could use this flaw to crash the host kernel resulting in
DoS or it could potentially be used to escalate privileges on a host.
Upstream patch:
-> https://git.kernel.org/linus/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755
Reference:
-> http://www.openwall.com/lists/oss-security/2016/12/02/2
Discussion:
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1400805]
---
Statement:
This issue does not affect the versions of the kernel package as shipped with
Red Hat Ente
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12http://www.openwall.com/lists/oss-security/2016/12/02/2http://www.securityfocus.com/bid/94640https://bugzilla.redhat.com/show_bug.cgi?id=1400804https://github.com/torvalds/linux/commit/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12http://www.openwall.com/lists/oss-security/2016/12/02/2http://www.securityfocus.com/bid/94640https://bugzilla.redhat.com/show_bug.cgi?id=1400804https://github.com/torvalds/linux/commit/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755
2016-12-28
Published