The mozilla::a11y::HyperTextAccessible::GetChildOffset function in the accessibility implementation in Mozilla Firefox before 49.0 allows remote attackers to execute arbitrary code via a crafted web site.
La función mozilla::a11y::HyperTextAccessible::GetChildOffset en la implementación de accesibilidad en Mozilla Firefox en versiones anteriores a 49.0 permite a atacantes remotos ejecutar código arbitrario a través de un sitio web manipulado.
Atte Kettunen discovered an out-of-bounds read when handling certain Content Security Policy directives in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash. Christoph Diehl, Christian Holler, Gary Kwong, Nathan Froyd, Honza Bambas, Seth Fowler, Michael Smith, Andrew McCreight, Dan Minor, Byron Campen, Jon Coppeard, Steve Fink, Tyson Smith, and Carsten Book discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code. Various other issues were also addressed.
