What is CVE-2023-34326?

CVE-2023-34326 is a high-severity vulnerability in Xen, classified under Operation on a Resource after Expiration or Release. CVSS score: 7.8/10. Published 2024-01-05.

How severe is CVE-2023-34326?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Xen

CVE-2023-34326

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…

EPSS: 0.003 (20.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Xen — versions consult Xen advisory XSA-442

Weakness classification (CWE)

CWE-672 — Operation on a Resource after Expiration or Release

References

security@xen.org (Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2023-34326?: CVE-2023-34326 is a high-severity vulnerability in Xen, classified under Operation on a Resource after Expiration or Release. CVSS score: 7.8/10. Published 2024-01-05.
How severe is CVE-2023-34326?: High severity. CVSS v3 base score is 7.8 out of 10.