kernel is vulnerable to information disclosure. The vulnerability exists through missing validations of null-terminated string data structure elements in the do_replace(), compat_do_replace(), do_ipt_get_ctl(), do_ip6t_get_ctl(), and do_arpt_get_ctl() functions could allow a local user who has the CAP_NET_ADMIN capability to cause an information leak.
docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/5.6_Technical_Notes/kernel.html#RHSA-2011-0833
downloads.avaya.com/css/P8/documents/100145416
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6a8ab060779779de8aea92ce3337ca348f973f54
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6a8ab060779779de8aea92ce3337ca348f973f54
marc.info/?l=linux-kernel&m=129978086410061&w=2
rhn.redhat.com/errata/RHSA-2011-0833.html
securityreason.com/securityalert/8278
www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
www.openwall.com/lists/oss-security/2011/03/18/15
www.openwall.com/lists/oss-security/2011/03/21/1
www.openwall.com/lists/oss-security/2011/03/21/4
access.redhat.com/errata/RHSA-2011:0833
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=689345