CVE-2021-28039
First published: Fri Mar 05 2021(Updated: )
An issue was discovered in the Linux kernel 5.9.x through 5.11.3, as used with Xen. In some less-common configurations, an x86 PV guest OS user can crash a Dom0 or driver domain via a large amount of I/O activity. The issue relates to misuse of guest physical addresses when a configuration has CONFIG_XEN_UNPOPULATED_ALLOC but not CONFIG_XEN_BALLOON_MEMORY_HOTPLUG.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| Linux Linux kernel | >=5.9.0<=5.11.3 | |
| Xen Xen | ||
| Netapp Cloud Backup | ||
| Netapp Solidfire Baseboard Management Controller Firmware |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-28039?
The severity of CVE-2021-28039 is medium.
How does CVE-2021-28039 affect Linux kernel?
CVE-2021-28039 affects Linux kernel versions 5.9.x through 5.11.3 in some less-common configurations.
How does CVE-2021-28039 impact Xen?
CVE-2021-28039 impacts Xen in some less-common configurations.
Which software versions are affected by CVE-2021-28039?
CVE-2021-28039 affects Linux kernel versions 5.9.x through 5.11.3 and Netapp Cloud Backup and Netapp Solidfire Baseboard Management Controller Firmware.
How can I mitigate the vulnerability CVE-2021-28039?
Mitigation for CVE-2021-28039 is to apply the relevant security patches provided by the respective vendors.
- collector/nvd-index
- agent/type
- agent/remedy
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/weakness
- agent/references
- agent/severity
- agent/softwarecombine
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/event
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/5.9.0
- version/linux linux kernel/5.11.3
- vendor/xen
- canonical/xen xen
- vendor/netapp
- canonical/netapp cloud backup
- canonical/netapp solidfire baseboard management controller firmware