openwrt/package/libs/openssl/Makefile

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#
openssl: update to 1.0.2g (8 CVEs) CVE-2016-0704 s2_srvr.c overwrite the wrong bytes in the master-key when applying Bleichenbacher protection for export cipher suites. This provides a Bleichenbacher oracle, and could potentially allow more efficient variants of the DROWN attack. CVE-2016-0703 s2_srvr.c did not enforce that clear-key-length is 0 for non-export ciphers. If clear-key bytes are present for these ciphers, they *displace* encrypted-key bytes. This leads to an efficient divide-and-conquer key recovery attack: if an eavesdropper has intercepted an SSLv2 handshake, they can use the server as an oracle to determine the SSLv2 master-key, using only 16 connections to the server and negligible computation. More importantly, this leads to a more efficient version of DROWN that is effective against non-export ciphersuites, and requires no significant computation. CVE-2016-0702 A side-channel attack was found which makes use of cache-bank conflicts on the Intel Sandy-Bridge microarchitecture which could lead to the recovery of RSA keys. The ability to exploit this issue is limited as it relies on an attacker who has control of code in a thread running on the same hyper- threaded core as the victim thread which is performing decryptions. CVE-2016-0799 The internal |fmtstr| function used in processing a "%s" format string in the BIO_*printf functions could overflow while calculating the length of a string and cause an OOB read when printing very long strings. Additionally the internal |doapr_outch| function can attempt to write to an OOB memory location (at an offset from the NULL pointer) in the event of a memory allocation failure. In 1.0.2 and below this could be caused where the size of a buffer to be allocated is greater than INT_MAX. E.g. this could be in processing a very long "%s" format string. Memory leaks can also occur. The first issue may mask the second issue dependent on compiler behaviour. These problems could enable attacks where large amounts of untrusted data is passed to the BIO_*printf functions. If applications use these functions in this way then they could be vulnerable. OpenSSL itself uses these functions when printing out human-readable dumps of ASN.1 data. Therefore applications that print this data could be vulnerable if the data is from untrusted sources. OpenSSL command line applications could also be vulnerable where they print out ASN.1 data, or if untrusted data is passed as command line arguments. Libssl is not considered directly vulnerable. Additionally certificates etc received via remote connections via libssl are also unlikely to be able to trigger these issues because of message size limits enforced within libssl. CVE-2016-0797 In the BN_hex2bn function the number of hex digits is calculated using an int value |i|. Later |bn_expand| is called with a value of |i * 4|. For large values of |i| this can result in |bn_expand| not allocating any memory because |i * 4| is negative. This can leave the internal BIGNUM data field as NULL leading to a subsequent NULL ptr deref. For very large values of |i|, the calculation |i * 4| could be a positive value smaller than |i|. In this case memory is allocated to the internal BIGNUM data field, but it is insufficiently sized leading to heap corruption. A similar issue exists in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn is ever called by user applications with very large untrusted hex/dec data. This is anticipated to be a rare occurrence. All OpenSSL internal usage of these functions use data that is not expected to be untrusted, e.g. config file data or application command line arguments. If user developed applications generate config file data based on untrusted data then it is possible that this could also lead to security consequences. This is also anticipated to be rare. CVE-2016-0798 The SRP user database lookup method SRP_VBASE_get_by_user had confusing memory management semantics; the returned pointer was sometimes newly allocated, and sometimes owned by the callee. The calling code has no way of distinguishing these two cases. Specifically, SRP servers that configure a secret seed to hide valid login information are vulnerable to a memory leak: an attacker connecting with an invalid username can cause a memory leak of around 300 bytes per connection. Servers that do not configure SRP, or configure SRP but do not configure a seed are not vulnerable. In Apache, the seed directive is known as SSLSRPUnknownUserSeed. To mitigate the memory leak, the seed handling in SRP_VBASE_get_by_user is now disabled even if the user has configured a seed. Applications are advised to migrate to SRP_VBASE_get1_by_user. However, note that OpenSSL makes no strong guarantees about the indistinguishability of valid and invalid logins. In particular, computations are currently not carried out in constant time. CVE-2016-0705 A double free bug was discovered when OpenSSL parses malformed DSA private keys and could lead to a DoS attack or memory corruption for applications that receive DSA private keys from untrusted sources. This scenario is considered rare. CVE-2016-0800 A cross-protocol attack was discovered that could lead to decryption of TLS sessions by using a server supporting SSLv2 and EXPORT cipher suites as a Bleichenbacher RSA padding oracle. Note that traffic between clients and non- vulnerable servers can be decrypted provided another server supporting SSLv2 and EXPORT ciphers (even with a different protocol such as SMTP, IMAP or POP) shares the RSA keys of the non-vulnerable server. This vulnerability is known as DROWN (CVE-2016-0800). Recovering one session key requires the attacker to perform approximately 2^50 computation, as well as thousands of connections to the affected server. A more efficient variant of the DROWN attack exists against unpatched OpenSSL servers using versions that predate 1.0.2a, 1.0.1m, 1.0.0r and 0.9.8zf released on 19/Mar/2015 (see CVE-2016-0703 below). Users can avoid this issue by disabling the SSLv2 protocol in all their SSL/TLS servers, if they've not done so already. Disabling all SSLv2 ciphers is also sufficient, provided the patches for CVE-2015-3197 (fixed in OpenSSL 1.0.1r and 1.0.2f) have been deployed. Servers that have not disabled the SSLv2 protocol, and are not patched for CVE-2015-3197 are vulnerable to DROWN even if all SSLv2 ciphers are nominally disabled, because malicious clients can force the use of SSLv2 with EXPORT ciphers. OpenSSL 1.0.2g and 1.0.1s deploy the following mitigation against DROWN: SSLv2 is now by default disabled at build-time. Builds that are not configured with "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, users who want to negotiate SSLv2 via the version-flexible SSLv23_method() will need to explicitly call either of: SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); or SSL_clear_options(ssl, SSL_OP_NO_SSLv2); as appropriate. Even if either of those is used, or the application explicitly uses the version-specific SSLv2_method() or its client or server variants, SSLv2 ciphers vulnerable to exhaustive search key recovery have been removed. Specifically, the SSLv2 40-bit EXPORT ciphers, and SSLv2 56-bit DES are no longer available. In addition, weak ciphers in SSLv3 and up are now disabled in default builds of OpenSSL. Builds that are not configured with "enable-weak-ssl-ciphers" will not provide any "EXPORT" or "LOW" strength ciphers. Signed-off-by: Jo-Philipp Wich <jow@openwrt.org> SVN-Revision: 48868
2016-03-01 14:31:08 +00:00
# Copyright (C) 2006-2016 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
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include $(TOPDIR)/rules.mk
PKG_NAME:=openssl
PKG_BASE:=1.0.2
PKG_BUGFIX:=m
PKG_VERSION:=$(PKG_BASE)$(PKG_BUGFIX)
PKG_RELEASE:=1
PKG_USE_MIPS16:=0
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PKG_BUILD_PARALLEL:=0
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
PKG_SOURCE_URL:= \
http://ftp.fi.muni.cz/pub/openssl/source/ \
http://ftp.linux.hr/pub/openssl/source/ \
http://gd.tuwien.ac.at/infosys/security/openssl/source/ \
http://www.openssl.org/source/ \
http://www.openssl.org/source/old/$(PKG_BASE)/
PKG_HASH:=8c6ff15ec6b319b50788f42c7abc2890c08ba5a1cdcd3810eb9092deada37b0f
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PKG_LICENSE:=OpenSSL
PKG_LICENSE_FILES:=LICENSE
PKG_CONFIG_DEPENDS:= \
CONFIG_OPENSSL_ENGINE_CRYPTO \
CONFIG_OPENSSL_ENGINE_DIGEST \
CONFIG_OPENSSL_WITH_EC \
CONFIG_OPENSSL_WITH_EC2M \
CONFIG_OPENSSL_WITH_SSL3 \
CONFIG_OPENSSL_HARDWARE_SUPPORT \
CONFIG_OPENSSL_WITH_DEPRECATED \
CONFIG_OPENSSL_WITH_DTLS \
CONFIG_OPENSSL_WITH_COMPRESSION \
CONFIG_OPENSSL_WITH_NPN \
CONFIG_OPENSSL_WITH_PSK \
CONFIG_OPENSSL_WITH_SRP
include $(INCLUDE_DIR)/package.mk
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ifneq ($(CONFIG_CCACHE),)
HOSTCC=$(HOSTCC_NOCACHE)
HOSTCXX=$(HOSTCXX_NOCACHE)
endif
define Package/openssl/Default
TITLE:=Open source SSL toolkit
URL:=http://www.openssl.org/
endef
define Package/libopenssl/config
source "$(SOURCE)/Config.in"
endef
define Package/openssl/Default/description
The OpenSSL Project is a collaborative effort to develop a robust,
commercial-grade, full-featured, and Open Source toolkit implementing the Secure
Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well
as a full-strength general purpose cryptography library.
endef
define Package/libopenssl
$(call Package/openssl/Default)
SECTION:=libs
SUBMENU:=SSL
CATEGORY:=Libraries
DEPENDS:=+OPENSSL_WITH_COMPRESSION:zlib
TITLE+= (libraries)
ABI_VERSION:=$(PKG_VERSION)
MENU:=1
endef
define Package/libopenssl/description
$(call Package/openssl/Default/description)
This package contains the OpenSSL shared libraries, needed by other programs.
endef
define Package/openssl-util
$(call Package/openssl/Default)
SECTION:=utils
CATEGORY:=Utilities
DEPENDS:=+libopenssl
TITLE+= (utility)
endef
define Package/openssl-util/conffiles
/etc/ssl/openssl.cnf
endef
define Package/openssl-util/description
$(call Package/openssl/Default/description)
This package contains the OpenSSL command-line utility.
endef
OPENSSL_NO_CIPHERS:= no-idea no-md2 no-mdc2 no-rc5 no-sha0 no-camellia no-krb5 \
no-whrlpool no-whirlpool no-seed no-jpake
OPENSSL_OPTIONS:= shared no-err no-sse2 no-ssl2 no-ssl2-method no-heartbeats
ifdef CONFIG_OPENSSL_ENGINE_CRYPTO
OPENSSL_OPTIONS += -DHAVE_CRYPTODEV
ifdef CONFIG_OPENSSL_ENGINE_DIGEST
OPENSSL_OPTIONS += -DUSE_CRYPTODEV_DIGESTS
endif
else
OPENSSL_OPTIONS += no-engines
endif
ifndef CONFIG_OPENSSL_WITH_EC
OPENSSL_OPTIONS += no-ec
endif
ifndef CONFIG_OPENSSL_WITH_EC2M
OPENSSL_OPTIONS += no-ec2m
endif
ifndef CONFIG_OPENSSL_WITH_SSL3
OPENSSL_OPTIONS += no-ssl3
endif
ifndef CONFIG_OPENSSL_HARDWARE_SUPPORT
OPENSSL_OPTIONS += no-hw
endif
ifndef CONFIG_OPENSSL_WITH_DEPRECATED
OPENSSL_OPTIONS += no-deprecated
endif
ifndef CONFIG_OPENSSL_WITH_DTLS
OPENSSL_OPTIONS += no-dtls
endif
ifdef CONFIG_OPENSSL_WITH_COMPRESSION
OPENSSL_OPTIONS += zlib-dynamic
else
OPENSSL_OPTIONS += no-comp
endif
ifndef CONFIG_OPENSSL_WITH_NPN
OPENSSL_OPTIONS += no-nextprotoneg
endif
ifndef CONFIG_OPENSSL_WITH_PSK
OPENSSL_OPTIONS += no-psk
endif
ifndef CONFIG_OPENSSL_WITH_SRP
OPENSSL_OPTIONS += no-srp
endif
ifeq ($(CONFIG_x86_64),y)
OPENSSL_TARGET:=linux-x86_64-openwrt
OPENSSL_MAKEFLAGS += LIBDIR=lib
else
OPENSSL_OPTIONS+=no-sse2
ifeq ($(CONFIG_mips)$(CONFIG_mipsel),y)
OPENSSL_TARGET:=linux-mips-openwrt
openssl: Enable assembler optimizations for aarch64 OpenSSL is built with the generic linux settings for most targets, including aarch64. These generic settings are designed for 32-bit CPU and provide no assembler optmization: this is widely suboptimal for aarch64. This patch simply switches to the aarch64 settings that are already available in OpenSSL. Here is the output of "openssl speed" before the optimization, with "(...)" representing build flags that didn't change: OpenSSL 1.0.2l 25 May 2017 options:bn(64,32) rc4(ptr,char) des(idx,cisc,2,int) aes(partial) blowfish(ptr) compiler: aarch64-openwrt-linux-musl-gcc (...) And after this patch, OpenSSL uses 64 bit mode and assembler optimizations: OpenSSL 1.0.2l 25 May 2017 options:bn(64,64) rc4(ptr,char) des(idx,cisc,2,int) aes(partial) blowfish(ptr) compiler: aarch64-openwrt-linux-musl-gcc (...) -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM Here are some benchmarks on a pine64+ running latest LEDE master r5142-20d363aed3: before# openssl speed sha aes blowfish The 'numbers' are in 1000s of bytes per second processed. type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes sha1 3918.89k 9982.43k 19148.03k 24933.03k 27325.78k sha256 4604.51k 10240.64k 17472.51k 21355.18k 22801.07k sha512 3662.19k 14539.41k 21443.16k 29544.11k 33177.60k blowfish cbc 16266.63k 16940.86k 17176.92k 17237.33k 17252.35k aes-128 cbc 19712.95k 21447.40k 22091.09k 22258.35k 22304.09k aes-192 cbc 17680.12k 19064.47k 19572.14k 19703.13k 19737.26k aes-256 cbc 15986.67k 17132.48k 17537.28k 17657.17k 17689.26k after# openssl speed sha aes blowfish type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes sha1 6770.87k 26172.80k 86878.38k 205649.58k 345978.20k sha256 20913.93k 74663.85k 184658.18k 290891.09k 351032.66k sha512 7633.10k 30110.14k 50083.24k 71883.43k 82485.25k blowfish cbc 16224.93k 16933.55k 17173.76k 17234.94k 17252.35k aes-128 cbc 19425.74k 21193.31k 22065.74k 22304.77k 22380.54k aes-192 cbc 17452.29k 18883.84k 19536.90k 19741.70k 19800.06k aes-256 cbc 15815.89k 17003.01k 17530.03k 17695.40k 17746.60k For some reason AES and blowfish do not benefit, but SHA performance improves between 1.7x and 15x. SHA256 clearly benefits the most from the optimization (4.5x on small blocks, 15x on large blocks!). When using EVP (with "openssl speed -evp <algo>"): # Before, EVP mode type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes sha1 3824.46k 10049.66k 19170.56k 24947.03k 27325.78k sha256 3368.33k 8511.15k 16061.44k 20772.52k 22721.88k sha512 2845.23k 11381.57k 19467.69k 28512.26k 33008.30k bf-cbc 15146.74k 16623.83k 17092.01k 17211.39k 17249.62k aes-128-cbc 17873.03k 20870.61k 21933.65k 22216.36k 22301.35k aes-192-cbc 16184.18k 18607.15k 19447.13k 19670.02k 19737.26k aes-256-cbc 14774.06k 16757.25k 17457.58k 17639.42k 17686.53k # After, EVP mode type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes sha1 7056.97k 27142.10k 89515.86k 209155.41k 347419.99k sha256 7745.70k 29750.06k 95341.48k 211001.69k 332376.75k sha512 4550.47k 18086.06k 39997.10k 65880.75k 81431.21k bf-cbc 15129.20k 16619.03k 17090.56k 17212.76k 17246.89k aes-128-cbc 99619.74k 269032.34k 450214.23k 567353.00k 613933.06k aes-192-cbc 93180.74k 231017.79k 361766.66k 433671.51k 461731.16k aes-256-cbc 89343.23k 209858.58k 310160.04k 362234.88k 380878.85k Blowfish does not seem to have assembler optimization at all, and SHA still benefits (between 1.6x and 14.5x) but is generally slower than in non-EVP mode. However, AES performance is improved between 5.5x and 27.5x, which is really impressive! For aes-128-cbc on large blocks, a core i7-6600U @2.60GHz is only twice as fast... Signed-off-by: Baptiste Jonglez <git@bitsofnetworks.org>
2017-10-27 18:45:53 +00:00
else ifeq ($(CONFIG_aarch64),y)
OPENSSL_TARGET:=linux-aarch64-openwrt
else ifeq ($(CONFIG_arm)$(CONFIG_armeb),y)
OPENSSL_TARGET:=linux-armv4-openwrt
else
OPENSSL_TARGET:=linux-generic-openwrt
OPENSSL_OPTIONS+=no-perlasm
endif
endif
STAMP_CONFIGURED := $(STAMP_CONFIGURED)_$(shell echo $(OPENSSL_OPTIONS) | mkhash md5)
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define Build/Configure
[ -f $(STAMP_CONFIGURED) ] || { \
rm -f $(PKG_BUILD_DIR)/*.so.* $(PKG_BUILD_DIR)/*.a; \
find $(PKG_BUILD_DIR) -name \*.o | xargs rm -f; \
}
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(cd $(PKG_BUILD_DIR); \
./Configure $(OPENSSL_TARGET) \
--prefix=/usr \
--openssldir=/etc/ssl \
$(TARGET_CPPFLAGS) \
$(TARGET_LDFLAGS) -ldl \
-DOPENSSL_SMALL_FOOTPRINT \
$(OPENSSL_NO_CIPHERS) \
$(OPENSSL_OPTIONS) \
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)
# XXX: OpenSSL "make depend" will look for installed headers before its own,
# so remove installed stuff first
-$(SUBMAKE) -j1 clean-staging
+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
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MAKEDEPPROG="$(TARGET_CROSS)gcc" \
OPENWRT_OPTIMIZATION_FLAGS="$(TARGET_CFLAGS)" \
$(OPENSSL_MAKEFLAGS) \
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depend
endef
TARGET_CFLAGS += $(FPIC) -I$(CURDIR)/include -ffunction-sections -fdata-sections
TARGET_LDFLAGS += -Wl,--gc-sections
define Build/Compile
+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
CC="$(TARGET_CC)" \
ASFLAGS="$(TARGET_ASFLAGS) -I$(PKG_BUILD_DIR)/crypto -c" \
AR="$(TARGET_CROSS)ar r" \
RANLIB="$(TARGET_CROSS)ranlib" \
OPENWRT_OPTIMIZATION_FLAGS="$(TARGET_CFLAGS)" \
$(OPENSSL_MAKEFLAGS) \
all
+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
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CC="$(TARGET_CC)" \
ASFLAGS="$(TARGET_ASFLAGS) -I$(PKG_BUILD_DIR)/crypto -c" \
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AR="$(TARGET_CROSS)ar r" \
RANLIB="$(TARGET_CROSS)ranlib" \
OPENWRT_OPTIMIZATION_FLAGS="$(TARGET_CFLAGS)" \
$(OPENSSL_MAKEFLAGS) \
build-shared
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# Work around openssl build bug to link libssl.so with libcrypto.so.
-rm $(PKG_BUILD_DIR)/libssl.so.*.*.*
+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
CC="$(TARGET_CC)" \
OPENWRT_OPTIMIZATION_FLAGS="$(TARGET_CFLAGS)" \
$(OPENSSL_MAKEFLAGS) \
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do_linux-shared
$(MAKE) -C $(PKG_BUILD_DIR) \
CC="$(TARGET_CC)" \
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INSTALL_PREFIX="$(PKG_INSTALL_DIR)" \
$(OPENSSL_MAKEFLAGS) \
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install
endef
define Build/InstallDev
$(INSTALL_DIR) $(1)/usr/include
$(CP) $(PKG_INSTALL_DIR)/usr/include/openssl $(1)/usr/include/
$(INSTALL_DIR) $(1)/usr/lib/
$(CP) $(PKG_INSTALL_DIR)/usr/lib/lib{crypto,ssl}.{a,so*} $(1)/usr/lib/
$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
$(CP) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/{openssl,libcrypto,libssl}.pc $(1)/usr/lib/pkgconfig/
[ -n "$(TARGET_LDFLAGS)" ] && $(SED) 's#$(TARGET_LDFLAGS)##g' $(1)/usr/lib/pkgconfig/{openssl,libcrypto,libssl}.pc || true
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endef
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define Package/libopenssl/install
$(INSTALL_DIR) $(1)/usr/lib
$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/libcrypto.so.* $(1)/usr/lib/
$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/libssl.so.* $(1)/usr/lib/
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endef
define Package/openssl-util/install
$(INSTALL_DIR) $(1)/etc/ssl
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$(CP) $(PKG_INSTALL_DIR)/etc/ssl/openssl.cnf $(1)/etc/ssl/
$(INSTALL_DIR) $(1)/etc/ssl/certs
$(INSTALL_DIR) $(1)/etc/ssl/private
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chmod 0700 $(1)/etc/ssl/private
$(INSTALL_DIR) $(1)/usr/bin
$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/openssl $(1)/usr/bin/
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endef
$(eval $(call BuildPackage,libopenssl))
$(eval $(call BuildPackage,openssl-util))