vulnerability
Gentoo Linux: CVE-2021-28706: Xen: Multiple Vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Nov 24, 2021 | Feb 5, 2024 | Nov 26, 2024 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Nov 24, 2021
Added
Feb 5, 2024
Modified
Nov 26, 2024
Description
guests may exceed their designated memory limit When a guest is permitted to have close to 16TiB of memory, it may be able to issue hypercalls to increase its memory allocation beyond the administrator established limit. This is a result of a calculation done with 32-bit precision, which may overflow. It would then only be the overflowed (and hence small) number which gets compared against the established upper bound.
Solution
gentoo-linux-upgrade-app-emulation-xen
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