CVE-2018-20020

LibVNC antes del commit con ID 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contiene una vulnerabilidad de escritura de memoria dinámica (heap) fuera de límites en la estructura del código del cliente VNC que puede resultar en la ejecución remota de código.

Nicolas Ruff discovered that iTALC had buffer overflows, divide-by-zero errors and didn't check malloc return values. A remote attacker could use these issues to cause a denial of service or possibly execute arbitrary code. Josef Gajdusek discovered that iTALC had heap-based buffer overflow vulnerabilities. A remote attacker could used these issues to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.