opensc: incorrect initialization of Siemens CardOS M4 smart cards

OpenSC before 0.11.5 uses weak permissions (ADMIN file control information of 00) for the 5015 directory on smart cards and USB crypto tokens running Siemens CardOS M4, which allows physically proximate attackers to change the PIN.

pkcs15-tool in OpenSC before 0.11.6 does not apply security updates to a smart card unless the card's label matches the "OpenSC" string, which might allow physically proximate attackers to exploit vulnerabilities that the card owner expected were patched, as demonstrated by exploitation of CVE-2008-2235.