Wind River Support Network

Meet the Support Network

Home CVE Database CVE-2019-14821

CVE-2019-14821

Description

An out-of-bounds access issue was found in the Linux kernel, all versions through 5.3, in the way Linux kernel\'s KVM hypervisor implements the Coalesced MMIO write operation. It operates on an MMIO ring buffer \'struct kvm_coalesced_mmio\' object, wherein write indices \'ring->first\' and \'ring->last\' value could be supplied by a host user-space process. An unprivileged host user or process with access to \'/dev/kvm\' device could use this flaw to crash the host kernel, resulting in a denial of service or potentially escalating privileges on the system.

Priority: High
CVSS v3: 8.8
Component: linux
Publish Date: Sep 19, 2019
Related ID: --
CVSS v2: HIGH
Modified Date: Sep 23, 2019

Find out more about CVE-2019-14821 from the MITRE-CVE dictionary and NIST NVD


Products Affected

Login may be required to access defects or downloads.

Product Name Status Defect Fixed Downloads
Linux
Wind River Linux LTS 17 Fixed LIN10-6454
10.17.41.19 --
Wind River Linux 8 Fixed LIN8-11498
8.0.0.31 --
Wind River Linux 9 Fixed LIN9-9064
9.0.0.24 --
Wind River Linux 7 Fixed -- 7.0.0.31 --
Wind River Linux LTS 21 Not Vulnerable -- -- --
Wind River Linux LTS 22 Not Vulnerable -- -- --
Wind River Linux LTS 18 Fixed LIN1018-4954
10.18.44.12 --
Wind River Linux LTS 19 Not Vulnerable -- -- --
Wind River Linux CD release Not Vulnerable -- -- --
Wind River Linux 6 Requires LTSS -- -- --
Wind River Linux LTS 23 Not Vulnerable -- -- --
VxWorks
VxWorks 7 Not Vulnerable -- -- --
VxWorks 6.9 Not Vulnerable -- -- --
Helix Virtualization Platform Cert Edition
Helix Virtualization Platform Cert Edition Not Vulnerable -- -- --

Related Products

Product Name Status Defect Fixed Downloads

Notes
Requires LTSS - customers must have active LTSS (Long Term Security Shield) Support to receive up-to-date information about vulnerabilities that may affect legacy software. Please contact your Wind River account team or see https://docs.windriver.com/bundle/Support_and_Maintenance_Supplemental_Terms_and_Conditions and https://support2.windriver.com/index.php?page=plc for more information.
Live chat
Online