Package: scheme9 Version: 2012.07.10-1 Severity: normal Tags: patch Dear Maintainer,
The CFLAGS hardening flags are missing because they are
ovewrriten in Makefile. For more hardening information please
have a look at [1], [2] and [3].
The attached patch fixes the issue.
To check if all flags were correctly enabled you can use
`hardening-check` from the hardening-includes package and check
the build log with `blhc` (hardening-check doesn't catch
everything):
$ hardening-check /usr/bin/s9
/usr/bin/s9:
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
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Description: Use CFLAGS from environment (dpkg-buildflags). Necessary for hardening flags. . Don't specify -O2 and -g (on by default) so they can be overwritten by dpkg-buildflags. Author: Simon Ruderich <[email protected]> Last-Update: 2012-07-13 --- scheme9-2012.07.10.orig/Makefile +++ scheme9-2012.07.10/Makefile @@ -27,7 +27,7 @@ BUILD_ENV= env S9FES_LIBRARY_PATH=.:lib: # Override default compiler and flags CC= gcc -CFLAGS= -g -Wall -ansi -pedantic -O2 +CFLAGS+= -Wall -ansi -pedantic prefix=/usr/local exec_prefix=$(prefix)
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