usr/log.c in iscsid in open-iscsi (iscsi-initiator-utils) before 2.0-865 uses a semaphore with insecure permissions (world-writable/world-readable) for managing log messages using shared memory, which allows local users to cause a denial of service (hang) by grabbing the semaphore.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10653
https://exchange.xforce.ibmcloud.com/vulnerabilities/34943
http://www.securitytracker.com/id?1018246
http://www.securityfocus.com/bid/24471
http://www.redhat.com/support/errata/RHSA-2007-0497.html
http://www.novell.com/linux/security/advisories/2007_17_sr.html
http://www.debian.org/security/2007/dsa-1314
http://svn.berlios.de/viewcvs/open-iscsi?rev=858&view=rev
http://support.novell.com/techcenter/psdb/187174044e1dbe78726bcf840f7530ed.html
http://secunia.com/advisories/26543
http://secunia.com/advisories/26438
http://secunia.com/advisories/25749