CVE-2017-7518

2018-07-3013:00:00

CWE-250

redhat

www.cve.org

5.5 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

26.7%

JSON

A flaw was found in the Linux kernel before version 4.12 in the way the KVM module processed the trap flag(TF) bit in EFLAGS during emulation of the syscall instruction, which leads to a debug exception(#DB) being raised in the guest stack. A user/process inside a guest could use this flaw to potentially escalate their privileges inside the guest. Linux guests are not affected by this.

CNA Affected

[
  {
    "product": "Kernel:",
    "vendor": "[UNKNOWN]",
    "versions": [
      {
        "status": "affected",
        "version": "4.12"
      }
    ]
  }
]