CVE-2020-27672

High

Description

An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a host OS denial of service, achieve data corruption, or possibly gain privileges by exploiting a race condition that leads to a use-after-free involving 2MiB and 1GiB superpages.

SeverityHigh
CVSS7.0
Exploit probability—
ProductXen
PublishedOct 22, 2020
First seenOct 22, 2020

How to fix

Affected products

ProductAffected versionsFixed in
xen xen3.2.0 ≤ v ≤ 4.14.0—
fedoraproject fedora31—
opensuse leap15.1, 15.2—
debian debian_linux10.0—

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