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Vigil@nce - Linux kernel: memory corruption via IP6T_SO_SET_REPLACE
November 2016 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can generate a memory corruption via
IP6T_SO_SET_REPLACE on the Linux kernel, in order to trigger a
denial of service, and possibly to run code.
– Impacted products: Debian, Fedora, Android OS, Linux, openSUSE,
openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
– Severity: 2/4.
– Creation date: 29/09/2016.
– Revision date: 29/09/2016.
DESCRIPTION OF THE VULNERABILITY
The Linux kernel offers the ip6_tables or ip_tables module.
However, the IP6T_SO_SET_REPLACE or IPT_SO_SET_REPLACE option of
setsockopt() does not correctly check offsets, which leads to a
memory corruption.
An attacker can therefore generate a memory corruption via
IP6T_SO_SET_REPLACE on the Linux kernel, in order to trigger a
denial of service, and possibly to run code.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Linux-kernel-memory-corruption-via-IP6T-SO-SET-REPLACE-20735
