vulnwire
5.5med

CVE-2016-8630

The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
5.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 30%
Public exploits
0
none known

The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a ModR/M byte in an undefined instruction.

Exploit prediction (EPSS)

0.36% probability of exploitation in the next 30 days, higher than 30% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD2.04.9AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
Technology feeds
Linux kernel (RSS, critical only)

References

  • kernel.org /pub/linux/kernel/v4.x/ChangeLog-4.8.7 · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/94459 · vdb-entry, x_refsource_BID, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=1393350 · x_refsource_CONFIRM, x_transferred
  • rhn.redhat.com /errata/RHSA-2017-0387.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • github.com /torvalds/linux/commit/d9092f52d7e61dd1557f2db2400ddb430e85937e · x_refsource_CONFIRM, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d9092f52d7e61dd1557f2db2400ddb430e859 · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2016/11/22/3 · mailing-list, x_refsource_MLIST, x_transferred
  • rhn.redhat.com /errata/RHSA-2017-0386.html · vendor-advisory, x_refsource_REDHAT, x_transferred

Sources

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