main/openssl: fix CVE-2018-0737

fixes #9008

2 files changed, 45 insertions, 2 deletions

diff --git a/main/openssl/APKBUILD b/main/openssl/APKBUILD
index d09400cd2d..c446584683 100644
--- a/main/openssl/APKBUILD
+++ b/main/openssl/APKBUILD
@@ -1,7 +1,7 @@
 # Maintainer: Timo Teras <timo.teras@iki.fi>
 pkgname=openssl
 pkgver=1.0.2o
-pkgrel=0
+pkgrel=1
 pkgdesc="Toolkit for SSL v2/v3 and TLS v1"
 url="http://openssl.org"
 depends=
@@ -26,6 +26,7 @@ source="http://www.openssl.org/source/${pkgname}-${pkgver}.tar.gz
         1001-crypto-hmac-support-EVP_MD_CTX_FLAG_ONESHOT-and-set-.patch
         1002-backport-changes-from-upstream-padlock-module.patch
         1003-engines-e_padlock-implement-sha1-sha224-sha256-accel.patch
+        CVE-2018-0732.patch
         "
 
 # secfixes:
@@ -61,6 +62,8 @@ source="http://www.openssl.org/source/${pkgname}-${pkgver}.tar.gz
 #     - CVE-2017-3738
 #     - CVE-2018-0733
 #     - CVE-2018-0739
+#   1.0.2o-r1:
+#     - CVE-2018-0732
 
 builddir="$srcdir"/$pkgname-$pkgver
 
@@ -143,4 +146,5 @@ c67472879a31b5dbdd313892df6d37e7c93e8c0237d406c30d50b1016c2618ead3c13277f5dc723e
 5febe20948e3f12d981e378e1f4ea538711657aacb6865a1aa91339d4a04277e250f490a1f2abc2c6f290bdc2b1bffdba1d00983b4c09f7ea983eef8163f9420  0010-ssl-env-zlib.patch
 8c181760d7a149aa18d246d50f1c0438ffb63c98677b05306dfc00400ad0429b47d31e7c8d85126005c67f743d23e7a8a81174ffe98556f4caf9cf6b04d9ff17  1001-crypto-hmac-support-EVP_MD_CTX_FLAG_ONESHOT-and-set-.patch
 a3555440b5f544bfd6b9ad97557d8f4c1d673f6a35219f65056a72035d186be5f354717ddf9784899b602464d48657b090ade24379552d43af97609c0f48c389  1002-backport-changes-from-upstream-padlock-module.patch
-6353c7a94016c20db5d683dde37775f6780952ecdb1a5f39f878d04ba37f6ad79ae10fb6d65d181d912505a5d1e22463004cd855d548b364c00b120da2b0fdbc  1003-engines-e_padlock-implement-sha1-sha224-sha256-accel.patch"
+6353c7a94016c20db5d683dde37775f6780952ecdb1a5f39f878d04ba37f6ad79ae10fb6d65d181d912505a5d1e22463004cd855d548b364c00b120da2b0fdbc  1003-engines-e_padlock-implement-sha1-sha224-sha256-accel.patch
+ff91298629f157496a012da00ba7325923f5d087bfa54b60e205bf2dfb06374e958912e0df39dbdf39773555455c1a3afa3dcde1ddfec6e85cf89b0b62cc0eb4  CVE-2018-0732.patch"
diff --git a/main/openssl/CVE-2018-0732.patch b/main/openssl/CVE-2018-0732.patch
new file mode 100644
index 0000000000..148e7c3bc1
--- /dev/null
+++ b/main/openssl/CVE-2018-0732.patch
@@ -0,0 +1,39 @@
+From 3984ef0b72831da8b3ece4745cac4f8575b19098 Mon Sep 17 00:00:00 2001
+From: Guido Vranken <guidovranken@gmail.com>
+Date: Mon, 11 Jun 2018 19:38:54 +0200
+Subject: [PATCH] Reject excessively large primes in DH key generation.
+
+CVE-2018-0732
+
+Signed-off-by: Guido Vranken <guidovranken@gmail.com>
+
+(cherry picked from commit 91f7361f47b082ae61ffe1a7b17bb2adf213c7fe)
+
+Reviewed-by: Tim Hudson <tjh@openssl.org>
+Reviewed-by: Matt Caswell <matt@openssl.org>
+(Merged from https://github.com/openssl/openssl/pull/6457)
+---
+ crypto/dh/dh_key.c | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/crypto/dh/dh_key.c b/crypto/dh/dh_key.c
+index 387558f1467..f235e0d682b 100644
+--- a/crypto/dh/dh_key.c
++++ b/crypto/dh/dh_key.c
+@@ -130,10 +130,15 @@ static int generate_key(DH *dh)
+     int ok = 0;
+     int generate_new_key = 0;
+     unsigned l;
+-    BN_CTX *ctx;
++    BN_CTX *ctx = NULL;
+     BN_MONT_CTX *mont = NULL;
+     BIGNUM *pub_key = NULL, *priv_key = NULL;
+ 
++    if (BN_num_bits(dh->p) > OPENSSL_DH_MAX_MODULUS_BITS) {
++        DHerr(DH_F_GENERATE_KEY, DH_R_MODULUS_TOO_LARGE);
++        return 0;
++    }
++
+     ctx = BN_CTX_new();
+     if (ctx == NULL)
+         goto err;