The ip6_frag_queue function in net/ipv6/reassembly.c in the Linux kernel before 2.6.36 allows remote attackers to bypass intended network restrictions via overlapping IPv6 fragments.

References

• https://nvd.nist.gov/vuln/detail/CVE-2012-4444
• torvalds/linux@70789d7
• https://bugzilla.redhat.com/show_bug.cgi?id=874835
• https://media.blackhat.com/bh-eu-12/Atlasis/bh-eu-12-Atlasis-Attacking_IPv6-WP.pdf
• http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=70789d7052239992824628db8133de08dc78e593
• http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00000.html
• http://rhn.redhat.com/errata/RHSA-2012-1580.html
• http://www.openwall.com/lists/oss-security/2012/11/09/2
• http://www.ubuntu.com/usn/USN-1660-1
• http://www.ubuntu.com/usn/USN-1661-1
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=70789d7052239992824628db8133de08dc78e593