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.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
- CVSS 3.0 Base Score: 7.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-toolsUpgrade kernel-tools-develUpgrade perfUpgrade kernelUpgrade python-perfUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade python-perf-debuginfoUpgrade kernel-headersUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade kernel-devel | Apr 27, 2020 | Sep 19, 2019 |
| Amazon_linux | — | Upgrade kernel | Sep 27, 2019 | Sep 19, 2019 |
| Centos_linux | — | Upgrade kpatch-patch-3_10_0-1062_1_2Upgrade kernel-rtUpgrade kpatch-patch-3_10_0-1062-debuginfoUpgrade kpatch-patch-3_10_0-1062_1_2-debuginfoUpgrade kpatch-patch-3_10_0-1062_4_2Upgrade kpatch-patch-3_10_0-1062_1_1Upgrade kpatch-patch-3_10_0-1062_4_1-debuginfoUpgrade kernelUpgrade kpatch-patch-3_10_0-1062_1_1-debuginfoUpgrade kpatch-patch-3_10_0-1062_4_1Upgrade kpatch-patch-3_10_0-1062_4_3Upgrade kpatch-patch-3_10_0-1062 | Nov 6, 2019 | Sep 19, 2019 |
| Debian | — | Upgrade linux | Sep 25, 2019 | Sep 19, 2019 |
| Huawei Euleros 2_0_sp2 | — | Upgrade kernel-tools-libsUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debug-develUpgrade kernel-debugUpgrade kernel-develUpgrade kernel-debuginfoUpgrade kernelUpgrade python-perfUpgrade perfUpgrade kernel-toolsUpgrade kernel-headers | Dec 4, 2019 | Sep 19, 2019 |
| Huawei Euleros 2_0_sp3 | — | Upgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernelUpgrade kernel-develUpgrade perfUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-debuginfo | Nov 19, 2019 | Sep 19, 2019 |
| Huawei Euleros 2_0_sp5 | — | Upgrade kernel-tools-libsUpgrade kernel-develUpgrade perfUpgrade kernel-toolsUpgrade kernel-headersUpgrade kernelUpgrade python-perf | Nov 19, 2019 | Sep 19, 2019 |
| Huawei Euleros 2_0_sp8 | — | Upgrade bpftoolUpgrade perfUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-develUpgrade kernel-headersUpgrade kernel-toolsUpgrade kernelUpgrade python-perfUpgrade kernel-source | Sep 30, 2019 | Sep 19, 2019 |
| Oracle_linux | — | Upgrade kernelUpgrade kernel-uek | Sep 21, 2019 | Sep 17, 2019 |
| Redhat Openshift | — | Upgrade redhat-coreos | Dec 29, 2020 | Sep 19, 2019 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernelNo solution exists | Nov 6, 2019 | Sep 19, 2019 |
| Suse | — | Upgrade kernel-docsUpgrade kernel-defaultUpgrade kernel-ec2-develUpgrade kernel-default-extraUpgrade kernel-default-manUpgrade kernel-ec2-extraUpgrade kernel-azure-baseUpgrade kernel-source-azureUpgrade kernel-devel-azureUpgrade kernel-obs-buildUpgrade kernel-ec2 | Oct 11, 2019 | Sep 19, 2019 |
| Ubuntu | — | Upgrade linux-image-oracleUpgrade linux-image-4.4.0-1056-awsUpgrade linux-image-powerpc-smp-lts-xenialUpgrade linux-image-oemUpgrade linux-image-4.15.0-1046-gkeUpgrade linux-image-4.4.0-166-powerpc-e500mcUpgrade linux-image-gcpUpgrade linux-image-virtual-lts-xenialUpgrade linux-image-generic-lts-xenialUpgrade linux-image-powerpc64-smpUpgrade linux-image-4.15.0-66-generic-lpaeUpgrade linux-image-generic-lpaeUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-genericUpgrade linux-image-snapdragonUpgrade linux-image-5.0.0-1020-raspi2Upgrade linux-image-generic-lpae-hwe-18.04Upgrade linux-image-powerpc-smpUpgrade linux-image-gkeUpgrade linux-image-gke-5.0Upgrade linux-image-virtualUpgrade linux-image-4.15.0-1052-awsUpgrade linux-image-5.0.0-32-generic-lpaeUpgrade linux-image-4.4.0-166-generic-lpaeUpgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-4.4.0-1128-snapdragonUpgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-4.15.0-1066-snapdragonUpgrade linux-image-5.0.0-1021-gcpUpgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-4.15.0-1049-raspi2Upgrade linux-image-virtual-hwe-18.04Upgrade linux-image-powerpc64-emb-lts-xenialUpgrade linux-image-5.0.0-32-genericUpgrade linux-image-powerpc64-embUpgrade linux-image-4.15.0-1061-azureUpgrade linux-image-4.4.0-166-lowlatencyUpgrade linux-image-4.4.0-166-powerpc64-smpUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-4.4.0-1096-awsUpgrade linux-image-4.4.0-166-powerpc64-embUpgrade linux-image-4.4.0-1060-kvmUpgrade linux-image-awsUpgrade linux-image-4.15.0-1047-gcpUpgrade linux-image-5.0.0-1019-awsUpgrade linux-image-powerpc-e500mc-lts-xenialUpgrade linux-image-kvmUpgrade linux-image-5.0.0-1020-kvmUpgrade linux-image-5.0.0-32-lowlatencyUpgrade linux-image-5.0.0-1024-snapdragonUpgrade linux-image-4.15.0-66-genericUpgrade linux-image-virtual-hwe-16.04Upgrade linux-image-azureUpgrade linux-image-raspi2Upgrade linux-image-powerpc64-smp-lts-xenialUpgrade linux-image-aws-hweUpgrade linux-image-lowlatencyUpgrade linux-image-5.0.0-1023-azureUpgrade linux-image-4.4.0-166-powerpc-smpUpgrade linux-image-gke-4.15Upgrade linux-image-powerpc-e500mcUpgrade linux-image-5.0.0-1023-gkeUpgrade linux-image-4.4.0-1124-raspi2Upgrade linux-image-4.15.0-66-lowlatencyUpgrade linux-image-lowlatency-lts-xenialUpgrade linux-image-generic-lpae-hwe-16.04Upgrade linux-image-4.15.0-1027-oracleUpgrade linux-image-4.15.0-1048-kvmUpgrade linux-image-4.15.0-1059-oemUpgrade linux-image-generic-lpae-lts-xenialUpgrade linux-image-4.4.0-166-generic | Oct 18, 2019 | Sep 19, 2019 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Sep 19, 2019 |
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