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CVE-2019-14821
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
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..
CVSSv2.0 Score
- Severity
- High
- Base Score
- 7.2/10
- Exploit Score
- 3.9/10
- Access Vector
- Local
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 10/10
- Confidentiality Impact
- Complete
- Availability Impact
- Complete
- Integrity Impact
- Complete
CVSSv3.1 Score
- Severity
- High
- Base Score
- 8.8/10
- Exploit Score
- 2/10
- Access Vector
- Local
- Access Complexity
- Low
- Privileges Required
- Low
- Impact Score
- 6/10
- Confidentiality Impact
- High
- Availability Impact
- High
- Integrity Impact
- High
- Scope
- Changed
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Yes
|
3.16 | 3.16.74 | |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Yes
|
4.14 | 4.14.146 | |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Yes
|
4.19 | 4.19.75 | |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Yes
|
4.4 | 4.4.194 | |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Yes
|
4.9 | 4.9.194 | |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Yes
|
5.2 | 5.2.17 | |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Yes
|
5.3 | 5.3.1 | |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Yes
|
2.6.27 | - | |
cpe:2.3:o:linux:linux_kernel:5.4:rc1:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*: |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_for_real_time:7:*:*:*:*:*: |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*: |
Yes
|
- | - | |
cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:redhat:enterprise_linux_for_real_time:8:*:*:*:*:*: |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:oracle:sd-wan_edge:8.2:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:oracle:sd-wan_edge:7.3:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:oracle:sd-wan_edge:8.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:oracle:sd-wan_edge:8.1:*:*:*:*:*:*:* |
Yes
|
- | - |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14821
- http://www.openwall.com/lists/oss-security/2019/09/20/1
- https://www.debian.org/security/2019/dsa-4531
- https://seclists.org/bugtraq/2019/Sep/41
- https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
- https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html
- https://security.netapp.com/advisory/ntap-20191004-0001/
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html
- https://usn.ubuntu.com/4157-1/
- https://usn.ubuntu.com/4157-2/
- https://usn.ubuntu.com/4162-1/
- https://usn.ubuntu.com/4163-1/
- https://usn.ubuntu.com/4163-2/
- https://usn.ubuntu.com/4162-2/
- http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1
- https://access.redhat.com/errata/RHSA-2019:3517
- https://access.redhat.com/errata/RHSA-2019:3309
- https://seclists.org/bugtraq/2019/Nov/11
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-k
- 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://www.oracle.com/security-alerts/cpuapr2020.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org