Artifex jbig2dec 0.13, as used in Ghostscript, allows out-of-bounds writes because of an integer overflow in the jbig2_build_huffman_table function in jbig2_huffman.c during operations on a crafted JBIG2 file, leading to a denial of service (application crash) or possibly execution of arbitrary code.
Artifex jbig2dec 0.13, como se utiliza en Ghostscript, permite escrituras fuera de límites debido a un desbordamiento de entero en la función jbig2_build_huffman_table en jbig2_huffman.c durante operaciones en un archivo JBIG2 manipulado, dando lugar a una denegacón de servicio (caída de aplicación) o posiblemente ejecución de código arbitrario.
Bingchang Liu discovered that jbig2dec incorrectly handled memory when decoding malformed image files. If a user or automated system were tricked into processing a specially crafted JBIG2 image file, a remote attacker could cause jbig2dec to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applied to Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. It was discovered that jbig2dec incorrectly handled memory when decoding malformed image files. If a user or automated system were tricked into processing a specially crafted JBIG2 image file, a remote attacker could cause jbig2dec to crash, resulting in a denial of service, or possibly disclose sensitive information. Various other issues were also addressed.
