SB2020010928 - Out-of-bounds write in Linux kernel

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Main Vulnerability Database SB2020010928

SB2020010928 - Out-of-bounds write in Linux kernel

Published: January 9, 2020 Updated: June 1, 2020

Security Bulletin ID SB2020010928
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Out-of-bounds write (CVE-ID: CVE-2019-19332)

The vulnerability allows a local authenticated user to damange or delete data.

An out-of-bounds memory write issue was found in the Linux Kernel, version 3.13 through 5.4, in the way the Linux kernel's KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could use this flaw to crash the system, resulting in a denial of service.


Remediation

Install update from vendor's website.

References