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https://lists.exim.org/lurker/message/20260429.121733.f58d9686.en.html Fixes CVEs: CVE-2026-40684 Possible crash with malicious DNS data when using musl libc On systems using musl libc (not glibc) due to an oddity in octal printing it is possible to crash the connection instance when malformed DNS data is present in PTR records. CVE-2026-40685 Possible OOB read/write on corrupt JSON in header configurations using json operators on invalid externally-provided input could trigger heap corruption. CVE-2026-40686 Possible OOB read with large UTF8 trailing characters configurations using utf8 operators on malformed utf8 in headers could trigger OOB reads and might trigger some data leak if error messages are required for subsequent emails in the current connection and similar malformed headers are present. CVE-2026-40687 Possible OOB read/write with SPA authenticator in configurations using the SPA authentication driver to a hostile/compromised external SPA/NTLM connnection it is possible to trigger an OOB read/write and crash the connection instance or possibly leak heap data to the instance. Signed-off-by: Bernd Kuhls <bernd@kuhls.net> Signed-off-by: Julien Olivain <ju.o@free.fr>
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 https://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