[Buildroot] [PATCH 4/4] libnss: security bump to version 3.33

[Peter Korsgaard <peter@korsgaard.com>]

Fixes CVE-2017-7805 - Martin Thomson discovered that nss, the Mozilla
Network Security Service library, is prone to a use-after-free vulnerability
in the TLS 1.2 implementation when handshake hashes are generated.  A remote
attacker can take advantage of this flaw to cause an application using the
nss library to crash, resulting in a denial of service, or potentially to
execute arbitrary code.

Also add a hash for the license file while we're at it.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
 package/libnss/libnss.hash | 6 ++++--
 package/libnss/libnss.mk   | 2 +-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/package/libnss/libnss.hash b/package/libnss/libnss.hash
index e4e24283cb..6c8ce83784 100644
--- a/package/libnss/libnss.hash
+++ b/package/libnss/libnss.hash
@@ -1,2 +1,4 @@
-# From https://ftp.mozilla.org/pub/security/nss/releases/NSS_3_31_RTM/src/SHA256SUMS
-sha256	e90561256a3271486162c1fbe8d614d118c333d36a4455be2af8688bd420a65d	nss-3.31.tar.gz
+# From https://ftp.mozilla.org/pub/security/nss/releases/NSS_3_33_RTM/src/SHA256SUMS
+sha256	98f0dabd36408e83dd3a11727336cc3cdfee4cbdd9aede2b2831eb2389c284e4  nss-3.33.tar.gz
+# Locally calculated
+sha256	a20c1a32d1f8102432360b42e932869f7c11c7cdbacf9cac554c422132af47f4  nss/COPYING
diff --git a/package/libnss/libnss.mk b/package/libnss/libnss.mk
index 51559295ef..27d305cc34 100644
--- a/package/libnss/libnss.mk
+++ b/package/libnss/libnss.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBNSS_VERSION = 3.31
+LIBNSS_VERSION = 3.33
 LIBNSS_SOURCE = nss-$(LIBNSS_VERSION).tar.gz
 LIBNSS_SITE = https://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/NSS_$(subst .,_,$(LIBNSS_VERSION))_RTM/src
 LIBNSS_DISTDIR = dist
-- 
2.11.0