CVE-2019-7149

Se ha descubierto una sobrelectura de búfer basada en memoria dinámica (heap) en la función read_srclines en dwarf_getsrclines.c en libdw en la versión 0.175 de elfutils. Una entrada manipulada puede causar fallos de segmentación, conduciendo a una denegación de servicio (DoS), tal y como queda demostrado con eu-nm.

It was discovered that elfutils incorrectly handled certain malformed files. If a user or automated system were tricked into processing a specially crafted file, elfutils could be made to crash or consume resources, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS. It was discovered that elfutils incorrectly handled bounds checks in certain functions when processing malformed files. If a user or automated system were tricked into processing a specially crafted file, elfutils could be made to crash or consume resources, resulting in a denial of service.