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def2405f39
This fixes the following vulnerability:
- CVE-2025-64503:
cups-filters contains backends, filters, and other software required
to get the cups printing service working on operating systems other
than macos. In cups-filters prior to 1.28.18, by crafting a PDF file
with a large `MediaBox` value, an attacker can cause CUPS-Filter 1.x’s
`pdftoraster` tool to write beyond the bounds of an array. First, a
PDF with a large `MediaBox` width value causes `header.cupsWidth` to
become large. Next, the calculation of `bytesPerLine =
(header.cupsBitsPerPixel * header.cupsWidth + 7) / 8` overflows,
resulting in a small value. Then, `lineBuf` is allocated with the
small `bytesPerLine` size. Finally, `convertLineChunked` calls
`writePixel8`, which attempts to write to `lineBuf` outside of its
buffer size (out of bounds write). In libcupsfilters, the maintainers
found the same `bytesPerLine` multiplication without overflow check,
but the provided test case does not cause an overflow there, because
the values are different. Commit
50d94ca0f2fa6177613c97c59791bde568631865 contains a patch, which is
incorporated into cups-filters version 1.28.18.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2025-64503
- 50d94ca0f2
Signed-off-by: Thomas Perale <thomas.perale@mind.be>
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