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The file access protection built into Ghostscript proved insufficient for the "%pipe%" PostScript device, when combined with Ghostscript's requirement to be able to create and control temporary files in the conventional temporary file directories (for example, "/tmp" or "/temp). This exploit is restricted to Unix-like systems (i.e., it doesn't affect Windows). The most severe claimed results are only feasible if the exploit is run as a "high privilege" user (root/superuser level) \u2013 a practice we would discourage under any circumstances. For more details, see the advisory: https://ghostscript.com/CVE-2021-3781.html Signed-off-by: Peter Korsgaard <peter@korsgaard.com> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches