CVE-2015-7799 Information

Description

The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel through 4.2.3 does not ensure that certain slot numbers are valid which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call.

Reference

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/2016-04/msg00015.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html http://lists.opensuse.org/opensuse-updates/2015-12/msg00039.html http://www.debian.org/security/2015/dsa-3426 http://www.openwall.com/lists/oss-security/2015/10/10/3 http://www.securityfocus.com/bid/77033 http://www.securitytracker.com/id/1033809 http://www.ubuntu.com/usn/USN-2841-1 http://www.ubuntu.com/usn/USN-2841-2 http://www.ubuntu.com/usn/USN-2842-1 http://www.ubuntu.com/usn/USN-2842-2 http://www.ubuntu.com/usn/USN-2843-1 http://www.ubuntu.com/usn/USN-2843-2 http://www.ubuntu.com/usn/USN-2843-3 http://www.ubuntu.com/usn/USN-2844-1 http://www.ubuntu.com/usn/USN-2886-1 https://bugzilla.redhat.com/show_bug.cgi?id=1271134 https://code.google.com/p/android/issues/detail?id=187973