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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

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
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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URL Source(s) Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html CVE, Inc., Red Hat Mailing List  Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html CVE, Inc., Red Hat Mailing List  Third Party Advisory 
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html CVE, Inc., Red Hat Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html CVE, Inc., Red Hat Third Party Advisory  VDB Entry 
http://www.openwall.com/lists/oss-security/2019/09/20/1 CVE, Inc., Red Hat Mailing List  Patch  Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:3309 CVE, Inc., Red Hat Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:3517 CVE, Inc., Red Hat Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:3978 CVE, Inc., Red Hat Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:3979 CVE, Inc., Red Hat Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:4154 CVE, Inc., Red Hat Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:4256 CVE, Inc., Red Hat Third Party Advisory 
https://access.redhat.com/errata/RHSA-2020:0027 CVE, Inc., Red Hat Third Party Advisory 
https://access.redhat.com/errata/RHSA-2020:0204 CVE, Inc., Red Hat Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14821 CVE, Inc., Red Hat Issue Tracking  Mitigation  Patch  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html CVE, Inc., Red Hat Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html CVE, Inc., Red Hat Mailing List  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TRZQQQANZWQMPILZV7OTS3RGGRLLE2Q7/ CVE, Inc., Red Hat Mailing List  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P/ CVE, Inc., Red Hat Mailing List  Third Party Advisory 
https://seclists.org/bugtraq/2019/Nov/11 CVE, Inc., Red Hat Mailing List  Third Party Advisory 
https://seclists.org/bugtraq/2019/Sep/41 CVE, Inc., Red Hat Issue Tracking  Mailing List  Third Party Advisory 
https://security.netapp.com/advisory/ntap-20191004-0001/ CVE, Inc., Red Hat Third Party Advisory 
https://usn.ubuntu.com/4157-1/ CVE, Inc., Red Hat Third Party Advisory 
https://usn.ubuntu.com/4157-2/ CVE, Inc., Red Hat Third Party Advisory 
https://usn.ubuntu.com/4162-1/ CVE, Inc., Red Hat Third Party Advisory 
https://usn.ubuntu.com/4162-2/ CVE, Inc., Red Hat Third Party Advisory 
https://usn.ubuntu.com/4163-1/ CVE, Inc., Red Hat Third Party Advisory 
https://usn.ubuntu.com/4163-2/ CVE, Inc., Red Hat Third Party Advisory 
https://www.debian.org/security/2019/dsa-4531 CVE, Inc., Red Hat Third Party Advisory 
https://www.oracle.com/security-alerts/cpuapr2020.html CVE, Inc., Red Hat Third Party Advisory 

Weakness Enumeration

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

Known Affected Software Configurations Switch to CPE 2.2

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Change History

30 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-14821
NVD Published Date:
09/19/2019
NVD Last Modified:
11/20/2024
Source:
Red Hat, Inc.