libgcrypt: fix CVE-2019-12904

In Libgcrypt 1.8.4, the C implementation of AES is vulnerable to a
flush-and-reload side-channel attack because physical addresses are
available to other processes. (The C implementation is used on platforms
where an assembly-language implementation is unavailable.)

Reference:
https://nvd.nist.gov/vuln/detail/CVE-2019-12904

Patches from:
https://github.com/gpg/libgcrypt/commit/1374254c2904ab5b18ba4a890856824a102d4705
https://github.com/gpg/libgcrypt/commit/daedbbb5541cd8ecda1459d3b843ea4d92788762
https://github.com/gpg/libgcrypt/commit/a4c561aab1014c3630bc88faf6f5246fee16b020

(From OE-Core rev: 757f2d50d7cd194e5f734a24e68d8f0da98b38f8)

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
(cherry picked from commit 37e390ff05b6a4509019db358ed496731d80cc51)
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/meta/recipes-support/libgcrypt/libgcrypt_1.8.4.bb b/meta/recipes-support/libgcrypt/libgcrypt_1.8.4.bb
index fda68a2938..11d078d44a 100644
--- a/meta/recipes-support/libgcrypt/libgcrypt_1.8.4.bb
+++ b/meta/recipes-support/libgcrypt/libgcrypt_1.8.4.bb
@@ -21,6 +21,9 @@ SRC_URI = "${GNUPG_MIRROR}/libgcrypt/libgcrypt-${PV}.tar.bz2 \
            file://0003-tests-bench-slope.c-workaround-ICE-failure-on-mips-w.patch \
            file://0002-libgcrypt-fix-building-error-with-O2-in-sysroot-path.patch \
            file://0004-tests-Makefile.am-fix-undefined-reference-to-pthread.patch \
+           file://0001-Prefetch-GCM-look-up-tables.patch \
+           file://0002-AES-move-look-up-tables-to-.data-section-and-unshare.patch \
+           file://0003-GCM-move-look-up-table-to-.data-section-and-unshare-.patch \
 "
 SRC_URI[md5sum] = "fbfdaebbbc6d7e5fbbf6ffdb3e139573"
 SRC_URI[sha256sum] = "f638143a0672628fde0cad745e9b14deb85dffb175709cacc1f4fe24b93f2227"