Heap-based Buffer Overflow in LibVNCClient Allows Remote Code Execution

CVE-2016-9942 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

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.

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