Samba 3.x before 3.3.15, 3.4.x before 3.4.12, and 3.5.x before 3.5.7 does not perform range checks for file descriptors before use of the FD_SET macro, which allows remote attackers to cause a denial of service (stack memory corruption, and infinite loop or daemon crash) by opening a large number of files, related to (1) Winbind or (2) smbd.
https://exchange.xforce.ibmcloud.com/vulnerabilities/65724
https://bugzilla.redhat.com/show_bug.cgi?id=678328
http://www.vupen.com/english/advisories/2011/0702
http://www.vupen.com/english/advisories/2011/0541
http://www.vupen.com/english/advisories/2011/0522
http://www.vupen.com/english/advisories/2011/0520
http://www.vupen.com/english/advisories/2011/0519
http://www.vupen.com/english/advisories/2011/0518
http://www.vupen.com/english/advisories/2011/0517
http://www.ubuntu.com/usn/USN-1075-1
http://www.securitytracker.com/id?1025132
http://www.securityfocus.com/bid/46597
http://www.samba.org/samba/history/samba-3.5.7.html
http://www.samba.org/samba/history/samba-3.4.12.html
http://www.samba.org/samba/history/samba-3.3.15.html
http://www.redhat.com/support/errata/RHSA-2011-0306.html
http://www.redhat.com/support/errata/RHSA-2011-0305.html
http://www.mandriva.com/security/advisories?name=MDVSA-2011:038
http://www.debian.org/security/2011/dsa-2175
http://support.apple.com/kb/HT4723
http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.593629
http://secunia.com/advisories/43843
http://secunia.com/advisories/43557
http://secunia.com/advisories/43556
http://secunia.com/advisories/43517
http://secunia.com/advisories/43512
http://secunia.com/advisories/43503
http://secunia.com/advisories/43482
http://samba.org/samba/security/CVE-2011-0719.html
http://marc.info/?l=bugtraq&m=130835366526620&w=2
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056241.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056229.html
http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.html