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Xen: Mehrere Schwachstellen
view advisory published 2026-09-08
Ein Angreifer kann mehrere Schwachstellen in Xen ausnutzen, um einen Denial of Service Angriff durchzuführen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen und Daten zu manipulieren.
01
describes (6)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-79603US | — | — | ||
x86 PV guests can free memory pages while still keeping a stale TLB entry
pointing to them. A TLB flush is only issued by Xen (if needed) when the
page is re-used. Since it's pos… | ||||
| CVE-2026-79602US | — | — | ||
A guest with a PCI device assigned that has at least a BAR on the IO port
space can trigger a BUG() in Xen. | ||||
| CVE-2026-62437US | — | — | ||
When guests are terminated, various pieces of cleanup need carrying out.
The cleaning up of PCI devices which were assigned to guests, and the
associated removal of tracking struct… | ||||
| CVE-2026-79604US | — | — | ||
| CVE-2026-79605US | — | — | ||
| CVE-2026-79606US | — | — | ||
02
references
External citations — patches, advisories, analysis.
- WID-SEC-W-2026-3248 - CSAF Versionself
- WID-SEC-2026-3248 - Portal Versionself
- Xen Security Advisory XSA-509 vom 2026-09-08external
- Xen Security Advisory XSA-510 vom 2026-09-08external
- Xen Security Advisory XSA-511 vom 2026-09-08external
- Xen Security Advisory XSA-512 vom 2026-09-08external
- Xen Security Advisory XSA-513 vom 2026-09-08external
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