NetSight
high7.1

CVE-2013-4563

The udp6_ufo_fragment function in net/ipv6/udp_offload.c in the Linux kernel through 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly p…

Impact

The udp6_ufo_fragment function in net/ipv6/udp_offload.c in the Linux kernel through 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly perform a certain size comparison before inserting a fragment header, which allows remote attackers to cause a denial of service (panic) via a large IPv6 UDP packet, as demonstrated by use of the Token Bucket Filter (TBF) queueing discipline.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 3.9.8 through 3.10.23
from 3.11 before 3.12.4
CanonicalUbuntu Linux
Versions 12.04, 13.10

Weakness classification

References