vulnerability
Ubuntu: (Multiple Advisories) (CVE-2020-29568): Linux kernel vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:N/I:N/A:C) | Dec 15, 2020 | Feb 26, 2021 | Aug 18, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
Dec 15, 2020
Added
Feb 26, 2021
Modified
Aug 18, 2025
Description
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.
Solutions
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
References
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