References to Advisories, Solutions, and Tools

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Change History

http://www.openwall.com/lists/oss-security/2026/06/09/11

http://xenbits.xen.org/xsa/advisory-491.html

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

CWE-362

{"timestamp":"2026-06-18T14:35:06.701148Z","id":"CVE-2026-42487","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

HVM guest I/O port accesses are subject to either emulation or at least
translation.  Translations are managed by the device model (via
XEN_DOMCTL_ioport_mapping), and hence the linked list used may changed
at any time.  Traversal of those lists (while handling guest I/O port
accesses) therefore needs synchronizing with updates, which was missing
so far.

https://xenbits.xenproject.org/xsa/advisory-491.html

[{"vendor":"Xen","product":"Xen","defaultStatus":"unknown","versions":[{"version":"consult Xen advisory XSA-491","status":"unknown"}]}]