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Known Affected Software Configurations Switch to CPE 2.2

Change History

OR
     *cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions from (including) 4.5.0

NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NIST NVD-CWE-noinfo

https://xenbits.xenproject.org/xsa/advisory-444.html No Types Assigned

https://xenbits.xenproject.org/xsa/advisory-444.html Patch, Vendor Advisory

[This CNA information record relates to multiple CVEs; the
text explains which aspects/vulnerabilities correspond to which CVE.]

AMD CPUs since ~2014 have extensions to normal x86 debugging functionality.
Xen supports guests using these extensions.

Unfortunately there are errors in Xen's handling of the guest state, leading
to denials of service.

 1) CVE-2023-34327 - An HVM vCPU can end up operating in the context of
    a previous vCPUs debug mask state.

 2) CVE-2023-34328 - A PV vCPU can 

Xen Project https://xenbits.xenproject.org/xsa/advisory-444.html [No types assigned]