CVE-2014-8133 Information

Description

arch/x86/kernel/tls.c in the Thread Local Storage (TLS) implementation in the Linux kernel through 3.18.1 allows local users to bypass the espfix protection mechanism and consequently makes it easier for local users to bypass the ASLR protection mechanism via a crafted application that makes a set_thread_area system call and later reads a 16-bit value.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=41bdc78544b8a93a9c6814b8bbbfef966272abbe http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html http://rhn.redhat.com/errata/RHSA-2015-1272.html http://secunia.com/advisories/62801 http://www.debian.org/security/2015/dsa-3128 http://www.mandriva.com/security/advisories?name=MDVSA-2015:058 http://www.openwall.com/lists/oss-security/2014/12/15/6 http://www.securityfocus.com/bid/71684 http://www.ubuntu.com/usn/USN-2490-1 http://www.ubuntu.com/usn/USN-2491-1 http://www.ubuntu.com/usn/USN-2492-1 http://www.ubuntu.com/usn/USN-2493-1 http://www.ubuntu.com/usn/USN-2515-1 http://www.ubuntu.com/usn/USN-2516-1 http://www.ubuntu.com/usn/USN-2517-1 http://www.ubuntu.com/usn/USN-2518-1 https://bugzilla.redhat.com/show_bug.cgi?id=1172797 https://github.com/torvalds/linux/commit/41bdc78544b8a93a9c6814b8bbbfef966272abbe