CVE-2023-34326 Affecting xen package, versions <4.16.5-r3


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.04% (11th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ALPINE316-XEN-6031441
  • published24 Oct 2023
  • disclosed5 Jan 2024

Introduced: 24 Oct 2023

CVE-2023-34326  (opens in a new tab)

How to fix?

Upgrade Alpine:3.16 xen to version 4.16.5-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Alpine. See How to fix? for Alpine:3.16 relevant fixed versions and status.

The caching invalidation guidelines from the AMD-Vi specification (48882—Rev 3.07-PUB—Oct 2022) is incorrect on some hardware, as devices will malfunction (see stale DMA mappings) if some fields of the DTE are updated but the IOMMU TLB is not flushed.

Such stale DMA mappings can point to memory ranges not owned by the guest, thus allowing access to unindented memory regions.

CVSS Scores

version 3.1