CVE-2011-4530 Information

Description

Siemens Automation License Manager (ALM) 4.0 through 5.1+SP1+Upd1 does not properly copy fields obtained from clients which allows remote attackers to cause a denial of service (exception and daemon crash) via long fields as demonstrated by fields to the (1) open_session-workstation-NAME or (2) grant-VERSION function.

Reference

http://aluigi.altervista.org/adv/almsrvx_1-adv.txt http://support.automation.siemens.com/WW/llisapi.dll/57252401?func=ll&objId=57252401&objAction=csView&nodeid0=17323948&lang=en&siteid=cseus&aktprim=0&extranet=standard&viewreg=WW&load=content http://support.automation.siemens.com/WW/view/en/114358 http://www.us-cert.gov/control_systems/pdf/ICSA-11-361-01.pdf