Lunar Linux Hardened

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Hardened Lunar Linux

The maingoal of this project might be to have a Lunar Linux with security enhancements. The most modules will be patched with patches we've written or others written. Others could be Linux-from-Scratch users or other Distributions. As long as we keep credits - This should be okay.

Language

The mainproblem is my language - so if you read things you don't understand please ask me - My english isn't as good as yours so probably i would be happy for corrections ;-)

Warning

This project is in an experimental state - So use it only if you want to play with it or if you want help developing it. It's not for production use right now.

The Patches

You will see "Status:" in the following sections. Status 1 means i tested is it compiling and does it seem working, on my local system (Athlon XP 2600+, 512 MB Ram, Vanilla 2.6.20 Kernel). Status 2 means i tested it a bit more and recompiled it several times. Status 3 means other people have tested it, too but it wasn't working sometimes. Status 4 means other people have tested it, too and it was working everywhere.

So:

  • Status 0 is untested.
  • Status 1 is really really alpha.
  • Status 2, too.
  • Status 3 is beta.
  • Status 4 is ready to go ;-)

gcc 4.1.2

Status: 1

posix-1.patch - Makes GCC Posix Compliant

binutils 2.17

Status: 1

branch_update-1.patch - This is the binutils-2_17-branch (bug fix branch) update, compared from binutils-2.17-release and binutils-2_17-branch with all the fluff removed (CVS entries, maintainer files, etc). This patch should be updated periodically.
hardened_tmp-3.patch - This patch uses mkstemp(3) and mkdtemp(3) for temporary file creation, if they are available, rather than the default mktemp(3). This is safer and removes some compiler warnings.
lazy-1.patch - This adds -z lazy option, inverse of -z now.
pt_pax-1.patch - This adds PT_PAX_FLAGS to Binutils. See: http://pax.grsecurity.net/
posix-1.patch - Makes binutils Posix Compliant

coreutils 6.7

Status: 1

i18n-1.patch - This patch fixes various problems with multibyte character support.
uname-1.patch - Fix the output of uname once and for all.

glibc 2.5

blowfish.patch - This patch adds blowfish crypto to libcrypt.
branch_update-2.patch - This is a branch update for Glibc-2.5, and should be rechecked periodically. See the "Changelog" and "localedata/ChangeLog" files for specific details.
dl_execstack_PaX-1.patch - This is needed for Pax. http://pax.grsecurity.net/
hardened_tmp-1.patch - This patch instructs mktemp(1) to use temporary file directory from the '-t' option. It also makes sure temporary files get removed after exiting the scripts.
iconv_unnest-1.patch - Move nested function to a static one so we avoid generating a trampoline.
localedef_segfault-1.patch - Fixes Segfault when using localdef. This problem is only noticed when using PaX and some architectures besides x86. See debian bug # 231438
pt_pax-1.patch - This is needed for Pax. http://pax.grsecurity.net/
strlcpy_strlcat-1.patch - http://www.courtesan.com/todd/papers/strlcpy.html
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