CVE-2019-14821
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2019-14821
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-14821.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2019-14821
- Related
- Published
- 2019-09-19T18:15:10Z
- Modified
- 2024-09-18T01:00:22Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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 kvmcoalescedmmio' 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
-
- http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- https://access.redhat.com/errata/RHSA-2019:3309
- https://access.redhat.com/errata/RHSA-2019:3517
- https://access.redhat.com/errata/RHSA-2019:3978
- https://access.redhat.com/errata/RHSA-2019:3979
- https://access.redhat.com/errata/RHSA-2019:4154
- https://access.redhat.com/errata/RHSA-2019:4256
- https://access.redhat.com/errata/RHSA-2020:0027
- https://access.redhat.com/errata/RHSA-2020:0204
- https://security.netapp.com/advisory/ntap-20191004-0001/
- https://www.debian.org/security/2019/dsa-4531
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html
- http://www.openwall.com/lists/oss-security/2019/09/20/1
- https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
- https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html
- 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
- https://seclists.org/bugtraq/2019/Sep/41
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14821
- https://usn.ubuntu.com/4157-1/
- https://usn.ubuntu.com/4157-2/
- https://usn.ubuntu.com/4162-1/
- https://usn.ubuntu.com/4162-2/
- https://usn.ubuntu.com/4163-1/
- https://usn.ubuntu.com/4163-2/
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://security-tracker.debian.org/tracker/CVE-2019-14821
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source