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Race Condition The advisory has been revoked - it doesn't affect any version of package xen  (opens in a new tab)

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EPSS
0.26% (18th percentile)

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  • Snyk IDSNYK-UBUNTU1604-XEN-1134205
  • published22 Sept 2022
  • disclosed22 Oct 2020
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Introduced: 22 Oct 2020

CVE-2020-27672  (opens in a new tab)
CWE-362  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:16.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Ubuntu.

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.