Package: ifd-gempc Version: 1.0.6-6 Severity: important Tags: patch Dear Maintainer,
The hardening flags are missing in a few places because the build
system ignores them.
The attached patch fixes the issue, if possible it should be sent
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/pcsc/drivers/ifd-GemPC430.bundle/Contents/Linux/libGemPC430.so.1.0.6
/usr/lib/pcsc/drivers/serial/libGemPC410.so.1.0.6
/usr/lib/pcsc/drivers/ifd-GemPC430.bundle/Contents/Linux/libGemPC430.so.1.0.6:
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!
/usr/lib/pcsc/drivers/serial/libGemPC410.so.1.0.6:
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: Use build flags from environment (dpkg-buildflags). Necessary for hardening flags. Author: Simon Ruderich <si...@ruderich.org> Last-Update: 2012-04-07 --- ifd-gempc-1.0.6.orig/GemPC410/Makefile +++ ifd-gempc-1.0.6/GemPC410/Makefile @@ -33,14 +33,14 @@ common: $(MAKE) -C ../common CFLAGS="$(CFLAGS) -I../GemPC410" all ifd-GemPC410: common $(targets) main.o ../common/GCdebug.o - $(CC) -o $@ $(targets) $(common_targets) main.o ../common/GCdebug.o + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(targets) $(common_targets) main.o ../common/GCdebug.o resetGemPC410: resetGemPC410.o - $(CC) -o $@ $^ + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $^ libGemPC410.so: common $(targets) rm -f $@ - $(CC) -shared $(LDFLAGS) $(targets) $(common_targets) -o $@ + $(CC) -shared $(CFLAGS) $(LDFLAGS) $(targets) $(common_targets) -o $@ chmod -x $@ mv $@ $@.$(version) --- ifd-gempc-1.0.6.orig/GemPC430/Makefile +++ ifd-gempc-1.0.6/GemPC430/Makefile @@ -35,13 +35,13 @@ common: $(MAKE) -C ../common CFLAGS="$(CFLAGS) -I../GemPC430" all ifd-GemPC430: common $(targets) main.o ../common/GCdebug.o - $(CC) $(LDFLAGS) -o $@ $(targets) $(common_targets) main.o ../common/GCdebug.o $(LIBS) + $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(targets) $(common_targets) main.o ../common/GCdebug.o $(LIBS) libGemPC430.so: common $(targets) - $(CC) -shared $(LDFLAGS) -o $@ $(targets) $(common_targets) $(LIBS) + $(CC) -shared $(CFLAGS) $(LDFLAGS) -o $@ $(targets) $(common_targets) $(LIBS) main.o: ../GemPC410/main.c - $(CC) $(CFLAGS) -c -o $@ $^ + $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -c -o $@ $^ clean: rm -f .dependencies
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