PT-2026-65468 · Xen · Xen
CVSS v3.1
8.8
Alta
| Vetor | AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
[This CNA information record relates to multiple CVEs; the
text explains which aspects/vulnerabilities correspond to which CVE.]
To manage the system, sysctl and platform operations are used by the
control domain or a possible Xenstore domain. Some of these operations
may not be executed in parallel, so a system-wide lock each is used.
The way those locks are acquired is, however, not providing any fairness.
Furthermore, with XSM/Flask in use, the lock acquire will, for some
operations, occur ahead of any permission checking.
The sysctl issue is CVE-2026-62426.
The platform-op issue is CVE-2026-62427.
Correção
Improper Locking
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Identificadores relacionados
Produtos afetados
Xen