nss: Fix CVE-2020-12399

Master (nss version 3.54) is not affected by this issue. This is a backport
from nss version 3.54.

NSS has shown timing differences when performing DSA signatures, which was
exploitable and could eventually leak private keys. This vulnerability affects
Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

Upstream patch:
https://hg.mozilla.org/projects/nss/rev/daa823a4a29bcef0fec33a379ec83857429aea2e

(From OE-Core rev: c447b32c1ec0c117748a4be68dda02d375c81b85)

Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/recipes-support/nss/nss_3.45.bb b/meta/recipes-support/nss/nss_3.45.bb
index c8005a5b3a..9fe27af5db 100644
--- a/meta/recipes-support/nss/nss_3.45.bb
+++ b/meta/recipes-support/nss/nss_3.45.bb
@@ -32,6 +32,7 @@ SRC_URI = "http://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/${VERSIO
            file://blank-cert9.db \
            file://blank-key4.db \
            file://system-pkcs11.txt \
+           file://0001-Bug-1631576-Force-a-fixed-length-for-DSA-exponentiat.patch \
            "
 
 SRC_URI[md5sum] = "f1752d7223ee9d910d551e57264bafa8"