CVEvulnerability
CVE-2016-4440
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2016-06-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-264
Description
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.
Affected configurations
• linux linux kernel (>= 4.5 < 4.7)
Related
Weakness · not in database (1)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f Vendor Advisory
- http://www.openwall.com/lists/oss-security/2016/05/20/2 Mailing List
- https://bugzilla.redhat.com/show_bug.cgi?id=1337806 Issue Tracking
- https://github.com/torvalds/linux/commit/3ce424e45411cf5a13105e0386b6ecf6eeb4f66f Vendor Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f Vendor Advisory
- http://www.openwall.com/lists/oss-security/2016/05/20/2 Mailing List
- https://bugzilla.redhat.com/show_bug.cgi?id=1337806 Issue Tracking
- https://github.com/torvalds/linux/commit/3ce424e45411cf5a13105e0386b6ecf6eeb4f66f Vendor Advisory