CVE-2013-0242

Desbordamiento de búfer en el metodo extend_buffers del comparador expresiónes regulares (posix / regexec.c) en glibc, posiblemente, v2.17 y anteriores, permite a atacantes dependientes de contexto provocar una denegación de servicio (corrupción de memoria y caída) mediante caracteres multibyte artesanales.

A flaw was found in the regular expression matching routines that process multibyte character input. If an application utilized the glibc regular expression matching mechanism, an attacker could provide specially-crafted input that, when processed, would cause the application to crash.

It was discovered that the GNU C Library incorrectly handled the strcoll() function. An attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. It was discovered that the GNU C Library incorrectly handled multibyte characters in the regular expression matcher. An attacker could use this issue to cause a denial of service. It was discovered that the GNU C Library incorrectly handled large numbers of domain conversion results in the getaddrinfo() function. An attacker could use this issue to cause a denial of service. Various other issues were also addressed.