Citrix XenServer Multiple Vulnerabilities (CTX140984)

critical Nessus Plugin ID 76771
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The remote device is missing a vendor-supplied security patch.


The remote host is running a version of Citrix XenServer that is affected by multiple vulnerabilities :

- An information disclosure exists due to the Xen hypervisor's failure to properly clean memory pages.

- An unspecified vulnerability exists due to a buffer overflow in the HVM graphics console. (CVE-2014-4947)

- XenServer is affected by an unspecified denial of service and information disclosure vulnerability.


Apply the relevant hotfix referenced in the advisory.

See Also

Plugin Details

Severity: Critical

ID: 76771

File Name: citrix_xenserver_CTX140984.nasl

Version: 1.8

Type: local

Family: Misc.

Published: 7/24/2014

Updated: 7/9/2018

Dependencies: citrix_xenserver_version.nbin

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:citrix:xenserver

Required KB Items: Host/XenServer/version, Host/local_checks_enabled

Exploit Ease: No known exploits are available

Patch Publication Date: 7/15/2014

Vulnerability Publication Date: 7/15/2014

Reference Information

CVE: CVE-2014-4021, CVE-2014-4947, CVE-2014-4948

BID: 68070, 68659, 68660