Source: libnova Version: 0.14.0-2 Severity: normal Tags: patch Dear Maintainer, The CFLAGS hardening flags are missing because ./configure overwrites 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/libnovaconfig /usr/lib/x86_64-linux-gnu/libnova-0.14.so.0.0.0 /usr/bin/libnovaconfig: Position Independent Executable: no, normal executable! Stack protected: no, not found! Fortify Source functions: yes Read-only relocations: yes Immediate binding: no not found! /usr/lib/x86_64-linux-gnu/libnova-0.14.so.0.0.0: 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 [4]: http://ruderich.org/simon/blhc/ -- + privacy is necessary + using gnupg http://gnupg.org + public key id: 0x92FEFDB7E44C32F9
Description: Use CFLAGS from environment (dpkg-buildflags). Necessary for hardening flags. Author: Simon Ruderich <simon@ruderich.org> Last-Update: 2012-05-04 --- libnova-0.14.0.orig/configure.in +++ libnova-0.14.0/configure.in @@ -63,7 +63,7 @@ AC_CHECK_FUNCS([acosl]) AC_CHECK_FUNCS([asinl]) AC_CHECK_FUNCS([atan2l]) -CFLAGS=-Wall +CFLAGS="$CFLAGS -Wall" # Checks for header files. AC_HEADER_STDC --- libnova-0.14.0.orig/configure +++ libnova-0.14.0/configure @@ -12529,7 +12529,7 @@ fi done -CFLAGS=-Wall +CFLAGS="$CFLAGS -Wall" # Checks for header files. { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
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