Gentoo Linux: CVE-2021-28706: Xen: Multiple Vulnerabilities
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(s)
- gentoo-linux-upgrade-app-emulation-xen
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