Published: 27/06/2016 Updated: 27/06/2016

CVSS v2 Base Score: 5.6 | Impact Score: 7.8 | Exploitability Score: 3.9

CVSS v3 Base Score: 7.1 | Impact Score: 5.2 | Exploitability Score: 1.8

VMScore: 499

Vector: AV:L/AC:L/Au:N/C:P/I:N/A:C

The msr_mtrr_valid function in arch/x86/kvm/mtrr.c in the Linux kernel prior to 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvm_arch_vcpu data structure, and consequently obtain sensitive information or cause a denial of service (system crash), via a crafted ioctl call.

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linux linux kernel

Several security issues were fixed in the kernel ...

CWE-284 https://bugzilla.redhat.com/show_bug.cgi?id=1332139 http://www.openwall.com/lists/oss-security/2016/05/16/2 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9842df62004f366b9fed2423e24df10542ee0dc5 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1 https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5 https://nvd.nist.gov https://usn.ubuntu.com/2978-1/

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CVE-2016-3713

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