CVE-2017-12154

Advisory lineage Upstream: 0 Downstream: 21
Modified
Published: 26 Sept 2017, 05:00
Last modified:05 Aug 2024, 18:28

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7.1 HIGH
v3.0 (nvd)
EPSS Score
0.04% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

26 Sept 2017, 05:00
Published
Vulnerability first disclosed
05 Aug 2024, 18:28
Last Modified
Vulnerability information updated

Description

The prepare_vmcs02 function in arch/x86/kvm/vmx.c in the Linux kernel through 4.13.3 does not ensure that the "CR8-load exiting" and "CR8-store exiting" L0 vmcs02 controls exist in cases where L1 omits the "use TPR shadow" vmcs12 control, which allows KVM L2 guest OS users to obtain read and write access to the hardware CR8 register.

CVSS Metrics

  • v3.0•HIGH•Score: 7.1CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  • v2.0•LOW•Score: 3.6AV:L/AC:L/Au:N/C:P/I:P/A:N

EPSS Trends

Current EPSS score: 0.04%• Percentile: 11%

Affected Systems

  • linux•linux_kernel

    ≤ 4.13.3

References (11)