CVE-2015-8215

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CVE-2015-8215

Summary:

Details: net/ipv6/addrconf.c in the IPv6 stack in the Linux kernel before 4.0 does not validate attempted changes to the MTU value, which allows context-dependent attackers to cause a denial of service (packet loss) via a value that is (1) smaller than the minimum compliant value or (2) larger than the MTU of an interface, as demonstrated by a Router Advertisement (RA) message that is not validated by a daemon, a different vulnerability than CVE-2015-0272. NOTE: the scope of CVE-2015-0272 is limited to the NetworkManager product.

References: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=77751427a1ff25b27d47a4c36b12c3c8667855ac, http://rhn.redhat.com/errata/RHSA-2016-0855.html, http://www.debian.org/security/2015/dsa-3364, https://github.com/torvalds/linux/commit/77751427a1ff25b27d47a4c36b12c3c8667855ac, https://bugzilla.novell.com/show_bug.cgi?id=944296, https://bugzilla.redhat.com/show_bug.cgi?id=1192132, http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html, http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html, http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00026.html, http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00031.html, http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.html, http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html, http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html, http://www.securityfocus.com/bid/85274, https://bugs.launchpad.net/bugs/1500810