CVE-2013-4470

MEDIUM

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.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=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/2013/10/25/5

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=1023477

https://github.com/torvalds/linux/commit/c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b

https://github.com/torvalds/linux/commit/e93b7d748be887cd7639b113ba7d7ef792a7efb9

https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.12.bz2

Details

Source: MITRE

Published: 2013-11-04

Updated: 2018-01-09

Type: CWE-264

Risk Information

CVSS v2.0

Base Score: 6.9

Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.4

Severity: MEDIUM