buildroot/package/flex/flex.mk
Matt Weber 120d1241d8 package/flex: ignore CVE-2019-6293
https://security-tracker.debian.org/tracker/CVE-2019-6293

https://github.com/NixOS/nixpkgs/issues/55386#issuecomment-683792976
 "But this bug does not cause stack overflows in the generated code.
 The function and file referred to in the bug (mark_beginning_as_normal
 in nfa.c) are part of the flex code generator, not part of the
 generated code. If flex crashes before generating any code, that
 can hardly be a vulnerability. If flex does not crash, the generated
 code is fine (or perhaps subject to other unreported bugs, who knows,
 but the NFA has been generated correctly)."

Upstream has chosen to not provide a fix
 https://github.com/westes/flex/issues/414

Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
[yann.morin.1998@free.fr: use actual upstream URL]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2021-04-24 11:25:33 +02:00

36 lines
1.2 KiB
Makefile

################################################################################
#
# flex
#
################################################################################
FLEX_VERSION = 2.6.4
FLEX_SITE = https://github.com/westes/flex/files/981163
FLEX_INSTALL_STAGING = YES
FLEX_LICENSE = FLEX
FLEX_LICENSE_FILES = COPYING
FLEX_CPE_ID_VENDOR = flex_project
# bug does not cause stack overflows in the generated code and has been
# noted upstream as a bug in the code generator
FLEX_IGNORE_CVES = CVE-2019-6293
FLEX_DEPENDENCIES = $(TARGET_NLS_DEPENDENCIES) host-m4
HOST_FLEX_DEPENDENCIES = host-m4
# 0001-build-AC_USE_SYSTEM_EXTENSIONS-in-configure.ac.patch
# 0002-build-make-it-possible-to-disable-the-build-of-the-f.patch
# 0003-build-make-it-possible-to-disable-the-build-of-the-d.patch
FLEX_AUTORECONF = YES
FLEX_GETTEXTIZE = YES
FLEX_CONF_ENV = ac_cv_path_M4=/usr/bin/m4 \
ac_cv_func_reallocarray=no
# Don't enable programs, they are not needed on the target, and
# require MMU support.
# Don't enable the doc, it's not needed on the target and requires
# special tools (help2man) to build.
FLEX_CONF_OPTS += --disable-program --disable-doc
HOST_FLEX_CONF_OPTS = --disable-doc
$(eval $(autotools-package))
$(eval $(host-autotools-package))