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Vulnerability of Citrix XenApp, XenDesktop: privilege escalation via Memory Permission

Synthesis of the vulnerability 

A local attacker can potentially manipulate the memory of Citrix XenApp or XenDesktop, in order to escalate his privileges.
Impacted software: XenApp, XenDesktop.
Severity of this computer vulnerability: 2/4.
Creation date: 03/08/2016.
Références of this announce: CTX215460, CVE-2016-6493, VIGILANCE-VUL-20302.

Description of the vulnerability 

The Citrix XenApp and XenDesktop products use shared memory.

However, access permissions to some memory areas are incorrect.

A local attacker can therefore potentially manipulate the memory of Citrix XenApp or XenDesktop, in order to escalate his privileges.
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This security alert impacts software or systems such as XenApp, XenDesktop.

Our Vigil@nce team determined that the severity of this security weakness is medium.

The trust level is of type confirmed by the editor, with an origin of user shell.

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

Solutions for this threat 

Citrix XenApp, XenDesktop: versions 6.5 HRP07 and 7.9.
Versions 6.5 HRP07 and 7.9 are fixed:
  https://www.citrix.com/downloads/xendesktop.html
  https://www.citrix.com/downloads/xenapp.html
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