A memory leak in glibc 2.1.1 (released on May 24, 1999) can be reached and amplified through the LD_HWCAP_MASK environment variable. Please note that many versions of glibc are not vulnerable to this issue if patched for CVE-2017-1000366.
Una fuga de memoria en glibc 2.1.1 (publicado el 24 de mayo de 1999) puede ser alcanzada y amplificada mediante la variable de entorno LD_HWCAP_MASK. Hay que tener en cuenta que muchas versiones de glibc no son vulnerables a este problema si se corrigen con el parche para CVE-2017-1000366.
It was discovered that the GNU C library did not properly handle all of the possible return values from the kernel getcwd syscall. A local attacker could potentially exploit this to execute arbitrary code in setuid programs and gain administrative privileges. A memory leak was discovered in the _dl_init_paths function in the GNU C library dynamic loader. A local attacker could potentially exploit this with a specially crafted value in the LD_HWCAP_MASK environment variable, in combination with CVE-2017-1000409 and another vulnerability on a system with hardlink protections disabled, in order to gain administrative privileges. Various other issues were also addressed.
