CVE-2019-14821

CVSS V2 High 7.2 CVSS V3 High 8.8
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.
Overview
  • CVE ID
  • CVE-2019-14821
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2019-09-19T18:15:10
  • Last Modified Date
  • 2023-02-12T23:34:02
Weakness Enumerations
CWE URL
CWE-787 http://cwe.mitre.org/data/definitions/787.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 2.6.27 3.15.10
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 3.16 3.16.74
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.4 4.4.194
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.9 4.9.194
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.14 4.14.146
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.19 4.19.75
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.2 5.2.17
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.3 5.3.1
cpe:2.3:o:linux:linux_kernel:5.4:rc1:*:*:*:*:*:* 1 OR
AND
cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_for_real_time:7:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_for_real_time:8:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:netapp:aff_a700s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:aff_a700s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h610s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:a:oracle:sd-wan_edge:7.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:sd-wan_edge:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:sd-wan_edge:8.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:sd-wan_edge:8.2:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.2
  • Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 8.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2
  • Impact Score
  • 6
References
Reference URL Reference Tags
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://access.redhat.com/errata/RHSA-2020:2851
https://access.redhat.com/security/cve/CVE-2019-14821
https://bugzilla.redhat.com/show_bug.cgi?id=1746708
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/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P/
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-14821
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14821
History
Created Old Value New Value Data Type Notes
2022-05-10 16:13:57 Added to TrackCVE
2022-12-04 02:57:01 2019-09-19T18:15Z 2019-09-19T18:15:10 CVE Published Date updated
2022-12-04 02:57:01 2021-06-02T15:22:59 CVE Modified Date updated
2022-12-04 02:57:01 Analyzed Vulnerability Status updated
2023-02-02 22:09:50 2023-02-02T21:18:38 CVE Modified Date updated
2023-02-02 22:09:50 Analyzed Modified Vulnerability Status updated
2023-02-02 22:09:50 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. An out-of-bounds access issue was found 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. Description updated
2023-02-02 22:09:53 References updated
2023-02-13 01:09:33 2023-02-12T23:34:02 CVE Modified Date updated
2023-02-13 01:09:33 An out-of-bounds access issue was found 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. 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. Description updated