CVEs-PoC/2016/CVE-2016-9942.md

CVE-2016-9942

Description

Heap-based buffer overflow in ultra.c in LibVNCClient in LibVNCServer before 0.9.11 allows remote servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted FramebufferUpdate message with the Ultra type tile, such that the LZO payload decompressed length exceeds what is specified by the tile dimensions.

POC

Reference

• https://github.com/LibVNC/libvncserver/pull/137
• https://usn.ubuntu.com/4587-1/

Github

• https://github.com/fkie-cad/nvd-json-data-feeds