CVE-2013-4470

Public Exploit

Description

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.

Category

6.9
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.06%
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Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b
http://www.openwall.com/lists/oss-security/2013/10/25/5 mailing list patch
http://www.ubuntu.com/usn/USN-2043-1 vendor advisory
http://www.ubuntu.com/usn/USN-2073-1 vendor advisory
http://www.ubuntu.com/usn/USN-2040-1 vendor advisory
https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.12.bz2 patch
http://www.ubuntu.com/usn/USN-2069-1 vendor advisory
http://www.ubuntu.com/usn/USN-2044-1 vendor advisory
http://rhn.redhat.com/errata/RHSA-2013-1801.html vendor advisory
http://www.ubuntu.com/usn/USN-2066-1 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00026.html vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1023477 patch
https://github.com/torvalds/linux/commit/c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b patch exploit
http://www.ubuntu.com/usn/USN-2049-1 vendor advisory
http://rhn.redhat.com/errata/RHSA-2014-0284.html vendor advisory
http://www.securityfocus.com/bid/63359 vdb entry
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e93b7d748be887cd7639b113ba7d7ef792a7efb9
http://www.ubuntu.com/usn/USN-2050-1 vendor advisory
http://www.ubuntu.com/usn/USN-2042-1 vendor advisory
https://github.com/torvalds/linux/commit/e93b7d748be887cd7639b113ba7d7ef792a7efb9 patch exploit
http://rhn.redhat.com/errata/RHSA-2014-0100.html vendor advisory
http://www.ubuntu.com/usn/USN-2067-1 vendor advisory
http://www.ubuntu.com/usn/USN-2046-1 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2013-4470?
CVE-2013-4470 has been scored as a medium severity vulnerability.
How to fix CVE-2013-4470?
To fix CVE-2013-4470, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-4470 being actively exploited in the wild?
It is possible that CVE-2013-4470 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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