Package: acl Version: 2.2.51-8 Severity: normal Tags: patch Dear Maintainer,
The LDFLAGS hardening flags are missing for libmisc because are
overwritten in the 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 /bin/chacl /bin/setfacl /bin/getfacl
/bin/chacl:
Position Independent Executable: no, normal executable!
Stack protected: no, not found!
Fortify Source functions: yes
Read-only relocations: yes
Immediate binding: no not found!
/bin/setfacl:
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!
/bin/getfacl:
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 build flags from environment (dpkg-buildflags). Necessary for hardening flags. Author: Simon Ruderich <[email protected]> Last-Update: 2012-09-13 --- acl-2.2.51.orig/libmisc/Makefile +++ acl-2.2.51/libmisc/Makefile @@ -20,7 +20,7 @@ TOPDIR = .. include $(TOPDIR)/include/builddefs LTLIBRARY = libmisc.la -LTLDFLAGS = +LTLDFLAGS = $(LDFLAGS) CFILES = quote.c unquote.c high_water_alloc.c next_line.c walk_tree.c
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