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Vulnerability of Xen: privilege escalation via XAPI

Synthesis of the vulnerability 

An attacker can bypass restrictions via XAPI of Xen, in order to escalate his privileges.
Impacted systems: XenServer, Xen.
Severity of this alert: 3/4.
Creation date: 16/08/2018.
Références of this alert: CERTFR-2018-AVI-388, CERTFR-2018-AVI-391, CTX236548, CVE-2018-14007, VIGILANCE-VUL-27005, XSA-271.

Description of the vulnerability 

An attacker can bypass restrictions via XAPI of Xen, in order to escalate his privileges.
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This computer weakness note impacts software or systems such as XenServer, Xen.

Our Vigil@nce team determined that the severity of this security bulletin is important.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this weakness announce.

Solutions for this threat 

Xen: patch for XAPI.
A patch is available:
  http://xenbits.xen.org/xsa/xsa271-xapi.patch

Citrix XenServer: patch.
A patch is indicated in information sources.
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Computer vulnerabilities tracking service 

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