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Special Forums Cybersecurity Security Advisories (RSS) Kees Cook: gcc-4.5 and -D_FORTIFY_SOURCE=2 with “header” structures Post 302481329 by Linux Bot on Friday 17th of December 2010 07:45:02 AM
Old 12-17-2010
Kees Cook: gcc-4.5 and -D_FORTIFY_SOURCE=2 with “header” structures

Recently gcc (4.5) improved its ability to see the size of various structures. As a result, the FORTIFY protections have suddenly gotten a bit stricter. In the past, you used to be able to do things like this:

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WHAT-PATCH(1)						      General Commands Manual						     WHAT-PATCH(1)

NAME
what-patch - detect which patch system a Debian package uses SYNOPSIS
what-patch [options] DESCRIPTION
what-patch examines the debian/rules file to determine which patch system the Debian package is using. what-patch should be run from the root directory of the Debian source package. OPTIONS
Listed below are the command line options for what-patch: -h, --help Display a help message and exit. -v Enable verbose mode. This will include the listing of any files modified outside or the debian/ directory and report any additional details about the patch system if available. AUTHORS
what-patch was written by Kees Cook <kees@ubuntu.com>, Siegfried-A. Gevatter <rainct@ubuntu.com>, and Daniel Hahler <ubuntu@thequod.de>, among others. This manual page was written by Jonathan Patrick Davies <jpds@ubuntu.com>. Both are released under the GNU General Public License, version 3 or later. SEE ALSO
The Ubuntu MOTU team has some documentation about patch systems at the Ubuntu wiki: https://wiki.ubuntu.com/PackagingGuide/PatchSystems cdbs-edit-patch(1), dbs-edit-patch(1), dpatch-edit-patch(1) DEBIAN
Debian Utilities WHAT-PATCH(1)
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