What’s Vulnerable › Vulnerabilities

CVE-2016-3713

• Severity: high (CVSS 7.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-06-27 · updated 2026-06-17
• Weakness: CWE-284

Description

The msr_mtrr_valid function in arch/x86/kvm/mtrr.c in the Linux kernel before 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.

Affected products

• Linux kernel: through 4.6

References

• 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
• http://www.openwall.com/lists/oss-security/2016/05/16/2
• https://bugzilla.redhat.com/show_bug.cgi?id=1332139
• https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5
• 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
• http://www.openwall.com/lists/oss-security/2016/05/16/2
• https://bugzilla.redhat.com/show_bug.cgi?id=1332139
• https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5

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