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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) 4.0.0 

CVE: http://www.openwall.com/lists/oss-security/2026/04/28/13 Types: Mailing List, Mitigation, Patch, Third Party Advisory

CVE: http://xenbits.xen.org/xsa/advisory-486.html Types: Mitigation, Patch, Vendor Advisory

Xen Project: https://xenbits.xenproject.org/xsa/advisory-486.html Types: Mitigation, Patch, Vendor Advisory

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

CWE-362

http://www.openwall.com/lists/oss-security/2026/04/28/13

http://xenbits.xen.org/xsa/advisory-486.html

The adjustments made for XSA-379 as well as those subsequently becoming
XSA-387 still left a race window, when a HVM or PVH guest does a grant
table version change from v2 to v1 in parallel with mapping the status
page(s) via XENMEM_add_to_physmap.  Some of the status pages may then be
freed while mappings of them would still be inserted into the guest's
secondary (P2M) page tables.

https://xenbits.xenproject.org/xsa/advisory-486.html