CVE-2013-4402

El analizador de paquetes comprimido en GnuPG versiones 1.4.x anteriores a 1.4.15 y versiones 2.0.x anteriores a 2.0.22, permite a los atacantes remotos causar una denegación de servicio (recursión infinita) por medio de un mensaje OpenPGP diseñado.

The GNU Privacy Guard is a tool for encrypting data and creating digital signatures, compliant with the proposed OpenPGP Internet standard and the S/MIME standard. A denial of service flaw was found in the way GnuPG parsed certain compressed OpenPGP packets. An attacker could use this flaw to send specially crafted input data to GnuPG, making GnuPG enter an infinite loop when parsing data. It was found that importing a corrupted public key into a GnuPG keyring database corrupted that keyring. An attacker could use this flaw to trick a local user into importing a specially crafted public key into their keyring database, causing the keyring to be corrupted and preventing its further use.