vulnwire
7.1high

CVE-2016-3713

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…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
7.1
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.3%
percentile 28%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

0.34% probability of exploitation in the next 30 days, higher than 28% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.1CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
NVD2.05.6AV:L/AC:L/Au:N/C:P/I:N/A:C

Classification

Weakness
Technology feeds
Linux kernel (RSS, critical only)

References

  • kernel.org /pub/linux/kernel/v4.x/ChangeLog-4.6.1 · x_refsource_CONFIRM, x_transferred
  • github.com /torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5 · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2016/05/16/2 · mailing-list, x_refsource_MLIST, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9842df62004f366b9fed2423e24df10542ee0 · x_refsource_CONFIRM, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=1332139 · x_refsource_CONFIRM, x_transferred

Sources

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