Package: libmatchbox Version: 1.9-osso8-1 Severity: normal Tags: patch Dear Maintainer,
The CPPFLAGS hardening flags are missing because configure.ac
clears 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 (hardening-check doesn't catch everything):
$ hardening-check /usr/lib/x86_64-linux-gnu/libmb.so.1.0.9
/usr/lib/x86_64-linux-gnu/libmb.so.1.0.9:
Position Independent Executable: no, regular shared library (ignored)
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: Restore CPPFLAGS in configure.ac. Necessary for (hardening) flags from environment. Author: Simon Ruderich <[email protected]> Last-Update: 2012-04-09 --- libmatchbox-1.9-osso8.orig/configure.ac +++ libmatchbox-1.9-osso8/configure.ac @@ -241,8 +241,8 @@ if test x$enable_xsettings != xno; then AC_MSG_ERROR([cannot find Xsettings-client headers]) fi - CPPFLAGS="$saved_CPPFLAGS" - LIBS="$saved_LIBS" + CPPFLAGS="$xsetsaved_CPPFLAGS" + LIBS="$xsetsaved_LIBS" MB_EXTRA_LIBS="$MB_EXTRA_LIBS $XSET_LIBS" MB_EXTRA_CFLAGS="$MB_EXTRA_CFLAGS $XSET_CFLAGS"
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