CVE-2013-4470

The Linux kernel before 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly initialize certain data structures, which allows local users to cause a denial of service (memory corruption and system crash) or possibly gain privileges via a crafted application that uses the UDP_CORK option in a setsockopt system call and sends both short and long packets, related to the ip_ufo_append_data function in net/ipv4/ip_output.c and the ip6_ufo_append_data function in net/ipv6/ip6_output.c.

• CWE-264

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e93b7d748be887cd7639b113ba7d7ef792a7efb9
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00026.html
• http://rhn.redhat.com/errata/RHSA-2013-1801.html
• http://rhn.redhat.com/errata/RHSA-2014-0100.html
• http://rhn.redhat.com/errata/RHSA-2014-0284.html
• http://www.openwall.com/lists/oss-security/2013/10/25/5Patch
• http://www.securityfocus.com/bid/63359
• http://www.ubuntu.com/usn/USN-2040-1
• http://www.ubuntu.com/usn/USN-2042-1
• http://www.ubuntu.com/usn/USN-2043-1
• http://www.ubuntu.com/usn/USN-2044-1
• http://www.ubuntu.com/usn/USN-2046-1
• http://www.ubuntu.com/usn/USN-2049-1
• http://www.ubuntu.com/usn/USN-2050-1
• http://www.ubuntu.com/usn/USN-2066-1
• http://www.ubuntu.com/usn/USN-2067-1
• http://www.ubuntu.com/usn/USN-2069-1
• http://www.ubuntu.com/usn/USN-2073-1
• https://bugzilla.redhat.com/show_bug.cgi?id=1023477Patch
• https://github.com/torvalds/linux/commit/c547dbf55d5f8cf615ccc0e7265e98db27d3fb8bExploit, Patch
• https://github.com/torvalds/linux/commit/e93b7d748be887cd7639b113ba7d7ef792a7efb9Exploit, Patch
• https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.12.bz2Patch
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e93b7d748be887cd7639b113ba7d7ef792a7efb9
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00026.html
• http://rhn.redhat.com/errata/RHSA-2013-1801.html
• http://rhn.redhat.com/errata/RHSA-2014-0100.html
• http://rhn.redhat.com/errata/RHSA-2014-0284.html
• http://www.openwall.com/lists/oss-security/2013/10/25/5Patch
• http://www.securityfocus.com/bid/63359
• http://www.ubuntu.com/usn/USN-2040-1
• http://www.ubuntu.com/usn/USN-2042-1
• http://www.ubuntu.com/usn/USN-2043-1
• http://www.ubuntu.com/usn/USN-2044-1
• http://www.ubuntu.com/usn/USN-2046-1
• http://www.ubuntu.com/usn/USN-2049-1
• http://www.ubuntu.com/usn/USN-2050-1
• http://www.ubuntu.com/usn/USN-2066-1
• http://www.ubuntu.com/usn/USN-2067-1
• http://www.ubuntu.com/usn/USN-2069-1
• http://www.ubuntu.com/usn/USN-2073-1
• https://bugzilla.redhat.com/show_bug.cgi?id=1023477Patch
• https://github.com/torvalds/linux/commit/c547dbf55d5f8cf615ccc0e7265e98db27d3fb8bExploit, Patch
• https://github.com/torvalds/linux/commit/e93b7d748be887cd7639b113ba7d7ef792a7efb9Exploit, Patch
• https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.12.bz2Patch

Published

Nov 4, 2013

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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