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

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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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