PT-2026-48243 · Xen+4 · Xen
CVSS v3.1
5.3
Média
| Vetor | AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H |
[This CNA information record relates to multiple CVEs; the
text explains which aspects/vulnerabilities correspond to which CVE.]
To create and manage guests, domctl operations are used by the control
domain, a possible Xenstore domain, or by a domain controlling a
particular guest. Some of these operations may not be executed in
parallel, so a system-wide lock is used. The way that lock is acquired
is, however, not providing any fairness. This is CVE-2026-42489.
Furthermore, with XSM/Flask in use, the lock acquire will, for some
operations, occur ahead of any permission checking. This is
CVE-2026-42490.
Correção
Improper Locking
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Xen