CVE-2021-28039: 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…

PriorityP424medium6.5CVSS 3.1

AVLACLPRLUINSCCNINAH

EPSS

0.42%

34.9th percentile

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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 5.10.24-1 (bookworm)	linux 5.10.24-1 (bookworm)
linux	linux_kernel	>= 0 < 5.10.24-1	5.10.24-1
linux	linux_kernel	>= 0 < 5.10.24-1	5.10.24-1
linux	linux_kernel	>= 0 < 5.10.24-1	5.10.24-1
linux	linux_kernel	>= 0 < 5.10.24-1	5.10.24-1
linux	linux_kernel	5.9.0 – 5.11.3	—

CVSS provenance

nvdv3.16.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P

osv6.5MEDIUM

vendor_debian6.5LOW

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