Package: bowtie Version: 0.12.7-2 Severity: normal Tags: patch Dear Maintainer,
The LDFLAGS/CPPFLAGS hardening flags are missing because the
build system ignores them. For more hardening information please
have a look at [1], [2] and [3].
The attached patch fixes the issue, if possible it should be sent
to upstream.
To check if all flags were correctly enabled you can use
`hardening-check` from the hardening-includes package and check
the build log (for example with blhc [4]) (hardening-check
doesn't catch everything):
$ hardening-check /usr/bin/bowtie-inspect /usr/bin/bowtie-build
/usr/bin/bowtie ...
/usr/bin/bowtie-inspect:
Position Independent Executable: no, normal executable!
Stack protected: yes
Fortify Source functions: no, only unprotected functions found!
Read-only relocations: yes
Immediate binding: no not found!
/usr/bin/bowtie-build:
Position Independent Executable: no, normal executable!
Stack protected: yes
Fortify Source functions: no, only unprotected functions found!
Read-only relocations: yes
Immediate binding: no not found!
/usr/bin/bowtie:
Position Independent Executable: no, normal executable!
Stack protected: yes
Fortify Source functions: yes (some protected functions found)
Read-only relocations: yes
Immediate binding: no not found!
...
(Position Independent Executable and Immediate binding is not
enabled by default.)
Use find -type f \( -executable -o -name \*.so\* \) -exec
hardening-check {} + on the build result to check all files.
Regards,
Simon
[1]: https://wiki.debian.org/ReleaseGoals/SecurityHardeningBuildFlags
[2]: https://wiki.debian.org/HardeningWalkthrough
[3]: https://wiki.debian.org/Hardening
[4]: http://ruderich.org/simon/blhc/
--
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Description: Use build flags from environment (dpkg-buildflags). Necessary for hardening flags. Author: Simon Ruderich <[email protected]> Last-Update: 2012-04-24 --- bowtie-0.12.7.orig/Makefile +++ bowtie-0.12.7/Makefile @@ -177,7 +177,7 @@ define checksum cat $^ | md5sum | awk '{print $$1}' > [email protected] endef -ALL_FLAGS=$(EXTRA_FLAGS) $(CFLAGS) $(CXXFLAGS) +ALL_FLAGS=$(EXTRA_FLAGS) $(CPPFLAGS) $(CFLAGS) $(CXXFLAGS) $(LDFLAGS) DEBUG_DEFS = -DCOMPILER_OPTIONS="\"$(DEBUG_FLAGS) $(ALL_FLAGS)\"" RELEASE_DEFS = -DCOMPILER_OPTIONS="\"$(RELEASE_FLAGS) $(ALL_FLAGS)\""
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