An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | alpine-linux-upgrade-linux-ltsalpine-linux-upgrade-xen | Mar 26, 2024 | Dec 15, 2020 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-kernelamazon-linux-ami-2-upgrade-kernel-debuginfoamazon-linux-ami-2-upgrade-kernel-debuginfo-common-aarch64amazon-linux-ami-2-upgrade-kernel-debuginfo-common-x86_64amazon-linux-ami-2-upgrade-kernel-develamazon-linux-ami-2-upgrade-kernel-headersamazon-linux-ami-2-upgrade-kernel-livepatch-4-14-214-160-339amazon-linux-ami-2-upgrade-kernel-toolsamazon-linux-ami-2-upgrade-kernel-tools-debuginfoamazon-linux-ami-2-upgrade-kernel-tools-develamazon-linux-ami-2-upgrade-perfamazon-linux-ami-2-upgrade-perf-debuginfoamazon-linux-ami-2-upgrade-python-perfamazon-linux-ami-2-upgrade-python-perf-debuginfo | Jan 27, 2021 | Dec 15, 2020 | |
| Amazon_linux | — | amazon-linux-upgrade-kernel | Jan 27, 2021 | Dec 15, 2020 |
| Debian | debian-upgrade-linux | Feb 3, 2021 | Dec 15, 2020 | |
| Freebsd | freebsd-upgrade-base-12_2-release-p3freebsd-upgrade-base-12_1-release-p13freebsd-upgrade-base-11_4-release-p7 | Jan 30, 2021 | Jan 29, 2021 | |
| Gentoo Linux | gentoo-linux-upgrade-app-emulation-xen | Jul 13, 2021 | Dec 15, 2020 | |
| Huawei Euleros 2_0_sp9 | huawei-euleros-2_0_sp9-upgrade-kernelhuawei-euleros-2_0_sp9-upgrade-kernel-toolshuawei-euleros-2_0_sp9-upgrade-kernel-tools-libshuawei-euleros-2_0_sp9-upgrade-python3-perf | Feb 8, 2021 | Dec 15, 2020 | |
| Oracle_linux | — | oracle-linux-upgrade-kernel-uekoracle-linux-upgrade-kernel-uek-containeroracle-linux-upgrade-kernel-uek-container-debugoracle-linux-upgrade-kernel-uek-debugoracle-linux-upgrade-kernel-uek-debug-develoracle-linux-upgrade-kernel-uek-develoracle-linux-upgrade-kernel-uek-docoracle-linux-upgrade-kernel-uek-firmwareoracle-linux-upgrade-kernel-uek-headersoracle-linux-upgrade-kernel-uek-toolsoracle-linux-upgrade-kernel-uek-tools-libsoracle-linux-upgrade-kernel-uek-tools-libs-develoracle-linux-upgrade-perforacle-linux-upgrade-python-perf | Jan 13, 2021 | Dec 15, 2020 |
| Suse | — | suse-upgrade-kernel-defaultsuse-upgrade-kernel-default-extrasuse-upgrade-kernel-docssuse-upgrade-kernel-obs-build | Jan 18, 2021 | Dec 15, 2020 |
| Ubuntu | ubuntu-upgrade-linux-image-4-15-0-1012-dell300xubuntu-upgrade-linux-image-4-15-0-1065-oracleubuntu-upgrade-linux-image-4-15-0-1079-gkeubuntu-upgrade-linux-image-4-15-0-1079-raspi2ubuntu-upgrade-linux-image-4-15-0-1085-kvmubuntu-upgrade-linux-image-4-15-0-1093-gcpubuntu-upgrade-linux-image-4-15-0-1094-awsubuntu-upgrade-linux-image-4-15-0-1096-snapdragonubuntu-upgrade-linux-image-4-15-0-1108-azureubuntu-upgrade-linux-image-4-15-0-136-genericubuntu-upgrade-linux-image-4-15-0-136-generic-lpaeubuntu-upgrade-linux-image-4-15-0-136-lowlatencyubuntu-upgrade-linux-image-4-4-0-1086-awsubuntu-upgrade-linux-image-4-4-0-1088-kvmubuntu-upgrade-linux-image-4-4-0-1122-awsubuntu-upgrade-linux-image-4-4-0-1146-raspi2ubuntu-upgrade-linux-image-4-4-0-1150-snapdragonubuntu-upgrade-linux-image-4-4-0-203-genericubuntu-upgrade-linux-image-4-4-0-203-generic-lpaeubuntu-upgrade-linux-image-4-4-0-203-lowlatencyubuntu-upgrade-linux-image-4-4-0-203-powerpc-e500mcubuntu-upgrade-linux-image-4-4-0-203-powerpc-smpubuntu-upgrade-linux-image-4-4-0-203-powerpc64-embubuntu-upgrade-linux-image-4-4-0-203-powerpc64-smpubuntu-upgrade-linux-image-5-4-0-1010-gkeopubuntu-upgrade-linux-image-5-4-0-1029-raspiubuntu-upgrade-linux-image-5-4-0-1033-kvmubuntu-upgrade-linux-image-5-4-0-1036-gkeubuntu-upgrade-linux-image-5-4-0-1037-gcpubuntu-upgrade-linux-image-5-4-0-1038-awsubuntu-upgrade-linux-image-5-4-0-1038-oracleubuntu-upgrade-linux-image-5-4-0-1040-azureubuntu-upgrade-linux-image-5-4-0-66-genericubuntu-upgrade-linux-image-5-4-0-66-generic-lpaeubuntu-upgrade-linux-image-5-4-0-66-lowlatencyubuntu-upgrade-linux-image-5-8-0-1016-raspiubuntu-upgrade-linux-image-5-8-0-1016-raspi-nolpaeubuntu-upgrade-linux-image-5-8-0-1019-kvmubuntu-upgrade-linux-image-5-8-0-1021-oracleubuntu-upgrade-linux-image-5-8-0-1023-azureubuntu-upgrade-linux-image-5-8-0-1023-gcpubuntu-upgrade-linux-image-5-8-0-1024-awsubuntu-upgrade-linux-image-5-8-0-44-genericubuntu-upgrade-linux-image-5-8-0-44-generic-64kubuntu-upgrade-linux-image-5-8-0-44-generic-lpaeubuntu-upgrade-linux-image-5-8-0-44-lowlatencyubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-hweubuntu-upgrade-linux-image-aws-lts-18-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-lts-18-04ubuntu-upgrade-linux-image-dell300xubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-lts-18-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-64k-hwe-20-04ubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-hwe-20-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-16-04ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04ubuntu-upgrade-linux-image-generic-lpae-lts-xenialubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-4-15ubuntu-upgrade-linux-image-gke-5-4ubuntu-upgrade-linux-image-gkeopubuntu-upgrade-linux-image-gkeop-5-4ubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-lowlatency-hwe-20-04ubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-lts-18-04ubuntu-upgrade-linux-image-powerpc-e500mcubuntu-upgrade-linux-image-powerpc-e500mc-lts-xenialubuntu-upgrade-linux-image-powerpc-smpubuntu-upgrade-linux-image-powerpc-smp-lts-xenialubuntu-upgrade-linux-image-powerpc64-embubuntu-upgrade-linux-image-powerpc64-emb-lts-xenialubuntu-upgrade-linux-image-powerpc64-smpubuntu-upgrade-linux-image-powerpc64-smp-lts-xenialubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-hwe-18-04ubuntu-upgrade-linux-image-raspi-nolpaeubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragonubuntu-upgrade-linux-image-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-16-04ubuntu-upgrade-linux-image-virtual-hwe-18-04ubuntu-upgrade-linux-image-virtual-hwe-20-04ubuntu-upgrade-linux-image-virtual-lts-xenial | Feb 26, 2021 | Dec 15, 2020 | |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Jan 20, 2025 | Dec 15, 2020 |
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