VULNERABILITY INTELLIGENCE
CVE-2013-4163
CVSS score4.7 MEDIUM
EPSS probability0.52%
CISA KEVNot currently listed
Published2013-07-29
Last modified2026-06-16
CVSS vectorAV:L/AC:M/Au:N/C:N/I:N/A:C
Description
The ip6_append_data_mtu function in net/ipv6/ip6_output.c in the IPv6 implementation in the Linux kernel through 3.10.3 does not properly maintain information about whether the IPV6_MTU setsockopt option had been specified, which allows local users to cause a denial of service (BUG and system crash) via a crafted application that uses the UDP_CORK option in a setsockopt system call.