The zbx_get_next_field function in libs/zbxcommon/str.c in Zabbix Server before 1.6.8 allows remote attackers to cause a denial of service (crash) via a request that lacks expected separators, which triggers a NULL pointer dereference, as demonstrated using the Command keyword.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
Link | Tags |
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http://www.securityfocus.com/archive/1/508436/30/60/threaded | mailing list patch |
https://support.zabbix.com/browse/ZBX-1355 | |
http://secunia.com/advisories/37740 | third party advisory vendor advisory |
http://www.vupen.com/english/advisories/2009/3514 | vdb entry vendor advisory |