VDB
CVE-2016-4440
CVE-2016-4440
REJECTED
arch/x86/kvm/vmx.c in the Linux kernel through 4.6.3 mishandles the APICv on/off state, which allows guest OS users to obtain direct APIC MSR access on the host OS, and consequently cause a denial of service (host OS crash) or possibly execute arbitrary code on the host OS, via x2APIC mode.
EPSS 0.05% · 15.7th percentile
Risk Scores
EPSS Score
0.05%
15.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | linux-snapdragon | 4.4.0-1019.22, 4.4.0-1020.23, 0 |
| Ubuntu:16.04:LTS | linux-hwe | 0 |
| Ubuntu:16.04:LTS | linux-gke | 0 |
| Ubuntu:16.04:LTS | linux-aws | 0 |
| Ubuntu:16.04:LTS | linux-raspi2 | 4.4.0-1003.4, 4.4.0-1004.5, 4.3.0-1006.6 |
| Ubuntu:14.04:LTS | linux-lts-xenial | 4.4.0-15.31~14.04.1, 0, 4.4.0-14.30~14.04.2 |
| Ubuntu:16.04:LTS | linux | 4.4.0-11.26, 0, 4.2.0-16.19 |
| Ubuntu:14.04:LTS | linux-aws | 0 |
Exploit Intelligence
- https://bugzilla.redhat.com/show_bug.cgi?id=1337806 (circl)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f (circl)
- [oss-security] 20160520 CVE-2016-4440 Kernel: kvm: vmx: incorrect state update leading to MSR access (circl)
- https://github.com/torvalds/linux/commit/3ce424e45411cf5a13105e0386b6ecf6eeb4f66f (circl)
Timeline
- Feb 4, 2022 EPSS Score
- Mar 29, 2022 EPSS Score
- May 20, 2022 EPSS Score
- Jul 12, 2022 EPSS Score
- Sep 3, 2022 EPSS Score
- Oct 26, 2022 EPSS Score
- Dec 18, 2022 EPSS Score
- Feb 8, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- Apr 2, 2023 EPSS Score
- May 25, 2023 EPSS Score
- Jul 16, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2016-4440 third-party-advisory
- http://comments.gmane.org/gmane.comp.emulators.kvm.devel/152100 third-party-advisory
- http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/152191 third-party-advisory
- http://www.openwall.com/lists/oss-security/2016/05/20/2 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2016-4440 third-party-advisory