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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2019-14821 Detail

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.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html Mailing List  Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html Mailing List  Third Party Advisory 
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html Third Party Advisory  VDB Entry 
http://www.openwall.com/lists/oss-security/2019/09/20/1 Mailing List  Patch  Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:3309 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:3517 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:3978 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:3979 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:4154 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:4256 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2020:0027 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2020:0204 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14821 Issue Tracking  Mitigation  Patch  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html Mailing List  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TRZQQQANZWQMPILZV7OTS3RGGRLLE2Q7/ Mailing List  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P/ Mailing List  Third Party Advisory 
https://seclists.org/bugtraq/2019/Nov/11 Mailing List  Third Party Advisory 
https://seclists.org/bugtraq/2019/Sep/41 Issue Tracking  Mailing List  Third Party Advisory 
https://security.netapp.com/advisory/ntap-20191004-0001/ Third Party Advisory 
https://usn.ubuntu.com/4157-1/ Third Party Advisory 
https://usn.ubuntu.com/4157-2/ Third Party Advisory 
https://usn.ubuntu.com/4162-1/ Third Party Advisory 
https://usn.ubuntu.com/4162-2/ Third Party Advisory 
https://usn.ubuntu.com/4163-1/ Third Party Advisory 
https://usn.ubuntu.com/4163-2/ Third Party Advisory 
https://www.debian.org/security/2019/dsa-4531 Third Party Advisory 
https://www.oracle.com/security-alerts/cpuapr2020.html Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST   Red Hat, Inc.  

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Change History

29 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-14821
NVD Published Date:
09/19/2019
NVD Last Modified:
02/16/2024
Source:
Red Hat, Inc.