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kumquat-buildroot/package/glibc/glibc.mk
Thomas Petazzoni adaae82c58 package/glibc: ignore CVEs not considered as security issues by upstream 
5 CVEs affecting glibc according to the NVD database are considered as
not being security issues by upstream glibc developers:

* CVE-2010-4756: The glob implementation in the GNU C Library (aka
  glibc or libc6) allows remote authenticated users to cause a denial
  of service (CPU and memory consumption) via crafted glob expressions
  that do not match any pathnames. glibc maintainers position: "That's
  standard POSIX behaviour implemented by (e)glibc. Applications using
  glob need to impose limits for themselves"

* CVE-2019-1010022: GNU Libc current is affected by: Mitigation
  bypass. The impact is: Attacker may bypass stack guard
  protection. The component is: nptl. The attack vector is: Exploit
  stack buffer overflow vulnerability and use this bypass
  vulnerability to bypass stack guard. NOTE: Upstream comments
  indicate "this is being treated as a non-security bug and no real
  threat. glibc maintainers position: "Not treated as a security issue
  by upstream https://sourceware.org/bugzilla/show_bug.cgi?id=22850"

* CVE-2019-1010023: GNU Libc current is affected by: Re-mapping
  current loaded library with malicious ELF file. The impact is: In
  worst case attacker may evaluate privileges. The component is:
  libld. The attack vector is: Attacker sends 2 ELF files to victim
  and asks to run ldd on it. ldd execute code. NOTE: Upstream comments
  indicate "this is being treated as a non-security bug and no real
  threat. glibc maintainers position: "Not treated as a security issue
  by upstream https://sourceware.org/bugzilla/show_bug.cgi?id=22851"

* CVE-2019-1010024: GNU Libc current is affected by: Mitigation
  bypass. The impact is: Attacker may bypass ASLR using cache of
  thread stack and heap. The component is: glibc. NOTE: Upstream
  comments indicate "this is being treated as a non-security bug and
  no real threat. glibc maintainers position: "Not treated as a
  security issue by upstream
  https://sourceware.org/bugzilla/show_bug.cgi?id=22852"

* CVE-2019-1010025: GNU Libc current is affected by: Mitigation
  bypass. The impact is: Attacker may guess the heap addresses of
  pthread_created thread. The component is: glibc. NOTE: the vendor's
  position is "ASLR bypass itself is not a vulnerability. Glibc
  maintainers position: "Not treated as a security issue by upstream
  https://sourceware.org/bugzilla/show_bug.cgi?id=22853"

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2023-12-23 11:11:37 +01:00

222 lines
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Makefile
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################################################################################
#
# glibc
#
################################################################################
# Generate version string using:
# git describe --match 'glibc-*' --abbrev=40 origin/release/MAJOR.MINOR/master | cut -d '-' -f 2-
# When updating the version, please also update localedef
GLIBC_VERSION = 2.38-27-g750a45a783906a19591fb8ff6b7841470f1f5701
# Upstream doesn't officially provide an https download link.
# There is one (https://sourceware.org/git/glibc.git) but it's not reliable,
# sometimes the connection times out. So use an unofficial github mirror.
# When updating the version, check it on the official repository;
# *NEVER* decide on a version string by looking at the mirror.
# Then check that the mirror has been synced already (happens once a day.)
GLIBC_SITE = $(call github,bminor,glibc,$(GLIBC_VERSION))
GLIBC_LICENSE = GPL-2.0+ (programs), LGPL-2.1+, BSD-3-Clause, MIT (library)
GLIBC_LICENSE_FILES = COPYING COPYING.LIB LICENSES
GLIBC_CPE_ID_VENDOR = gnu
# Extract the base version (e.g. 2.38) from GLIBC_VERSION) in order to
# allow proper matching with the CPE database.
GLIBC_CPE_ID_VERSION = $(word 1, $(subst -,$(space),$(GLIBC_VERSION)))
# Fixed by b25508dd774b617f99419bdc3cf2ace4560cd2d6, which is between
# 2.38 and the version we're really using
GLIBC_IGNORE_CVES += CVE-2023-4527
# Fixed by 750a45a783906a19591fb8ff6b7841470f1f5710, which is between
# 2.38 and the version we're really using.
GLIBC_IGNORE_CVES += CVE-2023-4911
# Fixed by 5ee59ca371b99984232d7584fe2b1a758b4421d3, which is between
# 2.38 and the version we're really using.
GLIBC_IGNORE_CVES += CVE-2023-5156
# All these CVEs are considered as not being security issues by
# upstream glibc:
# https://security-tracker.debian.org/tracker/CVE-2010-4756
# https://security-tracker.debian.org/tracker/CVE-2019-1010022
# https://security-tracker.debian.org/tracker/CVE-2019-1010023
# https://security-tracker.debian.org/tracker/CVE-2019-1010024
# https://security-tracker.debian.org/tracker/CVE-2019-1010025
GLIBC_IGNORE_CVES += \
CVE-2010-4756 \
CVE-2019-1010022 \
CVE-2019-1010023 \
CVE-2019-1010024 \
CVE-2019-1010025
# glibc is part of the toolchain so disable the toolchain dependency
GLIBC_ADD_TOOLCHAIN_DEPENDENCY = NO
# Before glibc is configured, we must have the first stage
# cross-compiler and the kernel headers
GLIBC_DEPENDENCIES = host-gcc-initial linux-headers host-bison host-gawk \
$(BR2_MAKE_HOST_DEPENDENCY) $(BR2_PYTHON3_HOST_DEPENDENCY)
GLIBC_SUBDIR = build
GLIBC_INSTALL_STAGING = YES
GLIBC_INSTALL_STAGING_OPTS = install_root=$(STAGING_DIR) install
# Thumb build is broken, build in ARM mode
ifeq ($(BR2_ARM_INSTRUCTIONS_THUMB),y)
GLIBC_EXTRA_CFLAGS += -marm
endif
# MIPS64 defaults to n32 so pass the correct -mabi if
# we are using a different ABI. OABI32 is also used
# in MIPS so we pass -mabi=32 in this case as well
# even though it's not strictly necessary.
ifeq ($(BR2_MIPS_NABI64),y)
GLIBC_EXTRA_CFLAGS += -mabi=64
else ifeq ($(BR2_MIPS_OABI32),y)
GLIBC_EXTRA_CFLAGS += -mabi=32
endif
ifeq ($(BR2_ENABLE_DEBUG),y)
GLIBC_EXTRA_CFLAGS += -g
endif
# glibc explicitly requires compile barriers between files
ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_4_7),y)
GLIBC_EXTRA_CFLAGS += -fno-lto
endif
# The stubs.h header is not installed by install-headers, but is
# needed for the gcc build. An empty stubs.h will work, as explained
# in http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html. The same trick
# is used by Crosstool-NG.
ifeq ($(BR2_TOOLCHAIN_BUILDROOT_GLIBC),y)
define GLIBC_ADD_MISSING_STUB_H
mkdir -p $(STAGING_DIR)/usr/include/gnu
touch $(STAGING_DIR)/usr/include/gnu/stubs.h
endef
endif
GLIBC_CONF_ENV = \
ac_cv_path_BASH_SHELL=/bin/$(if $(BR2_PACKAGE_BASH),bash,sh) \
libc_cv_forced_unwind=yes \
libc_cv_ssp=no
# POSIX shell does not support localization, so remove the corresponding
# syntax from ldd if bash is not selected.
ifeq ($(BR2_PACKAGE_BASH),)
define GLIBC_LDD_NO_BASH
$(SED) 's/$$"/"/g' $(@D)/elf/ldd.bash.in
endef
GLIBC_POST_PATCH_HOOKS += GLIBC_LDD_NO_BASH
endif
# Override the default library locations of /lib64/<abi> and
# /usr/lib64/<abi>/ for RISC-V.
ifeq ($(BR2_riscv),y)
ifeq ($(BR2_RISCV_64),y)
GLIBC_CONF_ENV += libc_cv_slibdir=/lib64 libc_cv_rtlddir=/lib
else
GLIBC_CONF_ENV += libc_cv_slibdir=/lib32 libc_cv_rtlddir=/lib
endif
endif
# glibc requires make >= 4.0 since 2.28 release.
# https://www.sourceware.org/ml/libc-alpha/2018-08/msg00003.html
GLIBC_MAKE = $(BR2_MAKE)
GLIBC_CONF_ENV += ac_cv_prog_MAKE="$(BR2_MAKE)"
ifeq ($(BR2_PACKAGE_GLIBC_KERNEL_COMPAT),)
GLIBC_CONF_OPTS += --enable-kernel=$(call qstrip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST))
endif
# Even though we use the autotools-package infrastructure, we have to
# override the default configure commands for several reasons:
#
# 1. We have to build out-of-tree, but we can't use the same
# 'symbolic link to configure' used with the gcc packages.
#
# 2. We have to execute the configure script with bash and not sh.
#
# Glibc nowadays can be build with optimization flags f.e. -Os
GLIBC_CFLAGS = $(TARGET_OPTIMIZATION)
# crash in qemu-system-nios2 with -Os
ifeq ($(BR2_nios2),y)
GLIBC_CFLAGS += -O2
endif
# glibc can't be built without optimization
ifeq ($(BR2_OPTIMIZE_0),y)
GLIBC_CFLAGS += -O1
endif
# glibc can't be built with Optimize for fast
ifeq ($(BR2_OPTIMIZE_FAST),y)
GLIBC_CFLAGS += -O2
endif
define GLIBC_CONFIGURE_CMDS
mkdir -p $(@D)/build
# Do the configuration
(cd $(@D)/build; \
$(TARGET_CONFIGURE_OPTS) \
CFLAGS="$(GLIBC_CFLAGS) $(GLIBC_EXTRA_CFLAGS)" CPPFLAGS="" \
CXXFLAGS="$(GLIBC_CFLAGS) $(GLIBC_EXTRA_CFLAGS)" \
$(GLIBC_CONF_ENV) \
$(SHELL) $(@D)/configure \
--target=$(GNU_TARGET_NAME) \
--host=$(GNU_TARGET_NAME) \
--build=$(GNU_HOST_NAME) \
--prefix=/usr \
--enable-shared \
$(if $(BR2_x86_64),--enable-lock-elision) \
--with-pkgversion="Buildroot" \
--disable-profile \
--disable-werror \
--without-gd \
--with-headers=$(STAGING_DIR)/usr/include \
$(if $(BR2_aarch64)$(BR2_aarch64_be),--enable-mathvec) \
--enable-crypt \
$(GLIBC_CONF_OPTS))
$(GLIBC_ADD_MISSING_STUB_H)
endef
#
# We also override the install to target commands since we only want
# to install the libraries, and nothing more.
#
GLIBC_LIBS_LIB = \
ld*.so.* libanl.so.* libc.so.* libcrypt.so.* libdl.so.* libgcc_s.so.* \
libm.so.* libpthread.so.* libresolv.so.* librt.so.* \
libutil.so.* libnss_files.so.* libnss_dns.so.* libmvec.so.*
ifeq ($(BR2_PACKAGE_GDB),y)
GLIBC_LIBS_LIB += libthread_db.so.*
endif
ifeq ($(BR2_PACKAGE_GLIBC_UTILS),y)
GLIBC_TARGET_UTILS_USR_BIN = posix/getconf elf/ldd
GLIBC_TARGET_UTILS_SBIN = elf/ldconfig
ifeq ($(BR2_SYSTEM_ENABLE_NLS),y)
GLIBC_TARGET_UTILS_USR_BIN += locale/locale
endif
endif
define GLIBC_INSTALL_TARGET_CMDS
for libpattern in $(GLIBC_LIBS_LIB); do \
$(call copy_toolchain_lib_root,$$libpattern) ; \
done
$(foreach util,$(GLIBC_TARGET_UTILS_USR_BIN), \
$(INSTALL) -D -m 0755 $(@D)/build/$(util) $(TARGET_DIR)/usr/bin/$(notdir $(util))
)
$(foreach util,$(GLIBC_TARGET_UTILS_SBIN), \
$(INSTALL) -D -m 0755 $(@D)/build/$(util) $(TARGET_DIR)/sbin/$(notdir $(util))
)
endef
$(eval $(autotools-package))
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