CVE-2023-34326 Affecting xen-libs package, versions <4.12.4_40-150100.3.95.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-SLES151-XENLIBS-6033859
  • published25 Oct 2023
  • disclosed24 Oct 2023

Introduced: 24 Oct 2023

CVE-2023-34326  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 xen-libs to version 4.12.4_40-150100.3.95.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen-libs package and not the xen-libs package as distributed by SLES. See How to fix? for SLES:15.1 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