net/ipv4/netfilter/ip_conntrack_core.c in Linux kernel 2.4 and 2.6, and possibly net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c in 2.6, does not clear sockaddr_in.sin_zero before returning IPv4 socket names from the getsockopt function with SO_ORIGINAL_DST, which allows local users to obtain portions of potentially sensitive memory.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10875
https://exchange.xforce.ibmcloud.com/vulnerabilities/25425
http://www.vupen.com/english/advisories/2006/4502
http://www.vupen.com/english/advisories/2006/2071
http://www.vmware.com/download/esx/esx-254-200610-patch.html
http://www.vmware.com/download/esx/esx-213-200610-patch.html
http://www.vmware.com/download/esx/esx-202-200610-patch.html
http://www.trustix.org/errata/2006/0032/
http://www.securityfocus.com/bid/17203
http://www.securityfocus.com/archive/1/451426/100/200/threaded
http://www.securityfocus.com/archive/1/451419/100/200/threaded
http://www.securityfocus.com/archive/1/451417/100/200/threaded
http://www.securityfocus.com/archive/1/451404/100/0/threaded
http://www.securityfocus.com/archive/1/435490/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2006-0580.html
http://www.redhat.com/support/errata/RHSA-2006-0579.html
http://www.redhat.com/support/errata/RHSA-2006-0575.html
http://www.redhat.com/support/errata/RHSA-2006-0437.html
http://www.mandriva.com/security/advisories?name=MDKSA-2006:150
http://www.mandriva.com/security/advisories?name=MDKSA-2006:123
http://www.debian.org/security/2006/dsa-1184
http://www.debian.org/security/2006/dsa-1097
http://support.avaya.com/elmodocs2/security/ASA-2006-200.htm
http://support.avaya.com/elmodocs2/security/ASA-2006-180.htm
http://secunia.com/advisories/22875
http://secunia.com/advisories/22417
http://secunia.com/advisories/22093
http://secunia.com/advisories/21983
http://secunia.com/advisories/21465
http://secunia.com/advisories/21136
http://secunia.com/advisories/21045
http://secunia.com/advisories/20671
http://secunia.com/advisories/19955