Denial of Service Vulnerability in Linux Kernel's IPv6 Implementation

CVE-2013-4163 · MEDIUM Severity

AV:L/AC:M/AU:N/C:N/I:N/A:C

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.

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