Privilege Defined With Unsafe Actions Affecting xen package, versions [,4.17.0-rc1)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.34% (26th percentile)

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  • Snyk IDSNYK-UNMANAGED-XEN-2866432
  • published10 Jun 2022
  • disclosed10 Jun 2022
  • creditJann Horn

Introduced: 10 Jun 2022

CVE-2022-26363  (opens in a new tab)
CVE-2022-26364  (opens in a new tab)
CWE-267  (opens in a new tab)

How to fix?

Upgrade xen to version 4.17.0-rc1 or higher.

Overview

Affected versions of this package are vulnerable to Privilege Defined With Unsafe Actions due to the safety logic which doesn't account for CPU-induced cache non-coherency. The safety logic can incorrectly conclude, in those cases where the CPU can cause the content of the cache to be different from the content in the main memory, that the contents of a page are safe.

CVSS Base Scores

version 3.1