TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of System (DoS). This attack appear to be exploitable via network connectivity.
El código de TightVNC versión 1.3.10, contiene una desreferencia del puntero null en la función HandleZlibBPP, lo que resulta en una Denegación del Sistema (DoS). Este ataque parece ser explotable por medio de la conectividad de red.
It was discovered that LibVNCServer incorrectly handled decompressing data. An attacker could possibly use this issue to cause LibVNCServer to crash, resulting in a denial of service. It was discovered that an information disclosure vulnerability existed in LibVNCServer when sending a ServerCutText message. An attacker could possibly use this issue to expose sensitive information. This issue only affected Ubuntu 19.10, Ubuntu 18.04 LTS, and Ubuntu 16.04 LTS. Various other issues were also addressed.
