Ryan Ware 8592536bcf EVM: Use crypto_memneq() for digest comparisons ... commit 613317bd212c585c20796c10afe5daaa95d4b0a1 upstream. This patch fixes vulnerability CVE-2016-2085. The problem exists because the vm_verify_hmac() function includes a use of memcmp(). Unfortunately, this allows timing side channel attacks; specifically a MAC forgery complexity drop from 2^128 to 2^12. This patch changes the memcmp() to the cryptographically safe crypto_memneq(). Reported-by: Xiaofei Rex Guo <xiaofei.rex.guo@intel.com> Signed-off-by: Ryan Ware <ware@linux.intel.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Signed-off-by: James Morris <james.l.morris@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2016-02-17 12:31:04 -08:00
..
evm.h	evm: replace HMAC version with attribute mask	2014-06-12 17:58:06 -04:00
evm_crypto.c	KEYS: Merge the type-specific data with the payload data	2015-10-21 15:18:36 +01:00
evm_main.c	EVM: Use crypto_memneq() for digest comparisons	2016-02-17 12:31:04 -08:00
evm_posix_acl.c	ima: fix script messages	2013-10-25 13:17:19 -04:00
evm_secfs.c	security: integrity: Use a more current logging style	2014-03-07 12:15:21 -05:00
Kconfig	kconfig: use bool instead of boolean for type definition attributes	2015-01-07 13:08:04 +01:00
Makefile