gdk‑pixbuf: Heap‑buffer‑overflow in gdk‑pixbuf

A flaw exists in gdk‑pixbuf within the gdkpixbufjpegimageloadincrement function io-jpeg.c and in glib’s gbase64encodestep 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,...