A flaw exists in gdk‑pixbuf within the gdk_pixbuf__jpeg_image_load_increment function
(io-jpeg.c) and in glib’s g_base64_encode_step (glib/gbase64.c). When processing
maliciously crafted JPEG images, a heap buffer overflow can occur during Base64 encoding,
allowing out-of-bounds reads from heap memory, potentially causing application crashes or
arbitrary code execution.
Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com> Signed-off-by: Steve Sakoman <steve@sakoman.com>