[Debian-med-packaging] Bug#667939: last-align: Hardening flags missing

Simon Ruderich simon at ruderich.org
Sat Apr 7 16:47:11 UTC 2012


Package: last-align
Version: 198-1
Severity: important
Tags: patch

Dear Maintainer,

The hardening flags are missing because the build system ignores
them.

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/bin/lastdb /usr/bin/lastal
    /usr/bin/lastdb:
     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/lastal:
     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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