9.4

CVE-2025-58146

XAPI UTF-8 string handling

There are multiple issues.

 1. Updates to the XAPI database sanitise input strings, but try
    generating the notification using the unsanitised input.  This
    causes the database's event thread to terminate and cease further
    processing.

 2. XAPI's UTF-8 encoder implements v3.0 of the Unicode spec, but XAPI
    uses libraries which conform to the stricter v3.1 of the Unicode
    spec.  This causes some strings to be accepted as valid UTF-8 by
    XAPI, but rejected by other libraries in use.  Notably, such strings
    can be entered into the database, after which the database can no
    longer be loaded.

 3. There is no input sanitisation for Map/Set updates on objects in the
    XAPI database.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerXen
≫
Produkt XAPI
Default Statusunaffected
Version all
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security@xen.org 9.4 0 0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

https://xenbits.xen.org/xsa/advisory-474.html
http://www.openwall.com/lists/oss-security/2025/09/09/3
http://xenbits.xen.org/xsa/advisory-474.html