CVE-2014-9679

Desbordamiento de enteros en la función cupsRasterReadPixels en filter/raster.c en CUPS anterior a 2.0.2 permite a atacantes remotos tener un impacto no especificado a través de un fichero de raster comprimido malformado, lo que provoca un desbordamiento de buffer.

An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way CUPS handled compressed raster image files. An attacker could create a specially crafted image file that, when passed via the CUPS Raster filter, could cause the CUPS filter to crash.

Cross-site scripting vulnerability in scheduler/client.c in Common Unix Printing System before 1.7.2 allows remote attackers to inject arbitrary web script or HTML via the URL path, related to the is_path_absolute function. In CUPS before 1.7.4, a local user with privileges of group=lp can write symbolic links in the rss directory and use that to gain '@SYSTEM' group privilege with cupsd. It was discovered that the web interface in CUPS incorrectly validated permissions on rss files and directory index files. A local attacker could possibly use this issue to bypass file permissions and read arbitrary files, possibly leading to a privilege escalation. A malformed file with an invalid page header and compressed raster data can trigger a buffer overflow in cupsRasterReadPixels.