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Category:   Application (Generic)  >   Citrix XenServer Vendors:   Citrix
(Citrix Issues Fix for Citrix XenServer) Net-snmp Incomplete Parsing in snmp_pdu_parse() Lets Remote Users Crash snmpd or Execute Arbitrary Code
SecurityTracker Alert ID:  1035641
SecurityTracker URL:  http://securitytracker.com/id/1035641
CVE Reference:   CVE-2015-5621   (Links to External Site)
Date:  Apr 21 2016
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 6.0, 6.0.2, 6.1, 6.2 SP1, 6.5 SP1
Description:   A vulnerability was reported in Net-snmp. A remote user can cause the target service to crash. A remote user can execute arbitrary code on the target system. Citrix XenServer is affected.

A remote user can send specially crafted data to trigger a parsing error in snmp_pdu_parse() and cause the target snmpd process to crash or execute arbitrary code on the target system. The code will run with the privileges of the target snmp service.

Qinghao Tang of QIHU 360, China, reported this vulnerability.

Impact:   A remote user can cause the target service to crash.

A remote user can execute arbitrary code on the target system.

Solution:   Citrix has issued a hotfix for CVE-2015-5621 for Citrix XenServer.

6.5 SP1: CTX209498
6.2 SP1: CTX209497
6.1: CTX209496
6.0.2: CTX209494
6.0.2 Common Criteria: CTX209495
6.0: CTX209493

The Citrix advisory is available at:

http://support.citrix.com/article/CTX209443

Vendor URL:  support.citrix.com/article/CTX209443 (Links to External Site)
Cause:   Access control error

Message History:   This archive entry is a follow-up to the message listed below.
Aug 18 2015 Net-snmp Incomplete Parsing in snmp_pdu_parse() Lets Remote Users Crash snmpd or Execute Arbitrary Code



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