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c35b052d97
Fixes the following security issues: CVE-2023-25139: When the printf family of functions is called with a format specifier that uses an <apostrophe> (enable grouping) and a minimum width specifier, the resulting output could be larger than reasonably expected by a caller that computed a tight bound on the buffer size. The resulting larger than expected output could result in a buffer overflow in the printf family of functions. CVE-2023-4527: If the system is configured in no-aaaa mode via /etc/resolv.conf, getaddrinfo is called for the AF_UNSPEC address family, and a DNS response is received over TCP that is larger than 2048 bytes, getaddrinfo may potentially disclose stack contents via the returned address data, or crash. CVE-2023-4806: When an NSS plugin only implements the _gethostbyname2_r and _getcanonname_r callbacks, getaddrinfo could use memory that was freed during buffer resizing, potentially causing a crash or read or write to arbitrary memory. CVE-2023-5156: The fix for CVE-2023-4806 introduced a memory leak when an application calls getaddrinfo for AF_INET6 with AI_CANONNAME, AI_ALL and AI_V4MAPPED flags set. Signed-off-by: Peter Korsgaard <peter@korsgaard.com> Reviewed-by: Romain Naour <romain.naour@smile.fr> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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