Multiple heap-based buffer overflows in the ZRLE_DECODE function in common/rfb/zrleDecode.h in TigerVNC before 1.3.1, when NDEBUG is enabled, allow remote VNC servers to cause a denial of service (vncviewer crash) and possibly execute arbitrary code via vectors related to screen image rendering.
[
{
"product": "TigerVNC",
"vendor": "TigerVNC",
"versions": [
{
"status": "affected",
"version": "before 1.3.1"
}
]
}
]