CVE-2019-14821 (GCVE-0-2019-14821)
Vulnerability from cvelistv5
Published
2019-09-19 17:37
Modified
2024-08-05 00:26
Severity ?
7.5 (High) - CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H
CWE
Summary
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.
References
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14821 x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2019/09/20/1 mailing-list, x_refsource_MLIST
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TRZQQQANZWQMPILZV7OTS3RGGRLLE2Q7/ vendor-advisory, x_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html mailing-list, x_refsource_MLIST
https://seclists.org/bugtraq/2019/Sep/41 mailing-list, x_refsource_BUGTRAQ
https://www.debian.org/security/2019/dsa-4531 vendor-advisory, x_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html mailing-list, x_refsource_MLIST
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P/ vendor-advisory, x_refsource_FEDORA
https://security.netapp.com/advisory/ntap-20191004-0001/ x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html vendor-advisory, x_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html vendor-advisory, x_refsource_SUSE
https://usn.ubuntu.com/4157-1/ vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4162-1/ vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4157-2/ vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4163-1/ vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4163-2/ vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4162-2/ vendor-advisory, x_refsource_UBUNTU
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html x_refsource_MISC
https://access.redhat.com/errata/RHSA-2019:3309 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:3517 vendor-advisory, x_refsource_REDHAT
https://seclists.org/bugtraq/2019/Nov/11 mailing-list, x_refsource_BUGTRAQ
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html x_refsource_MISC
https://access.redhat.com/errata/RHSA-2019:3978 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:3979 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:4154 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:4256 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0027 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0204 vendor-advisory, x_refsource_REDHAT
https://www.oracle.com/security-alerts/cpuapr2020.html x_refsource_MISC
Impacted products
Vendor Product Version
Linux Kernel Version: all through 5.3
 Create a notification for this product.
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    "dateReserved": "2019-08-10T00:00:00.000Z",
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    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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