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openSUSE:Leap:42.3
tigervnc
U_tigervnc-check-invalid-RRE-rects.patch
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File U_tigervnc-check-invalid-RRE-rects.patch of Package tigervnc
Git-commit: 466de9c52e925ea784fe4ce455741b2638ee3e94 Patch-Mainline: Upstream References: bnc#1019274 Author: Pierre Ossman <ossman@cendio.se> Subject: [PATCH] Check invalid RRE rects Signed-off-by: Michal Srb <msrb@suse.com> diff --git a/common/rfb/rreDecode.h b/common/rfb/rreDecode.h index 56defbd..f9fdcfc 100644 --- a/common/rfb/rreDecode.h +++ b/common/rfb/rreDecode.h @@ -22,6 +22,7 @@ // BPP - 8, 16 or 32 #include <rdr/InStream.h> +#include <rfb/Exception.h> namespace rfb { @@ -49,6 +50,10 @@ void RRE_DECODE (const Rect& r, rdr::InStream* is, int y = is->readU16(); int w = is->readU16(); int h = is->readU16(); + + if (((x+w) > r.width()) || ((y+h) > r.height())) + throw Exception ("RRE decode error"); + pb->fillRect(pf, Rect(r.tl.x+x, r.tl.y+y, r.tl.x+x+w, r.tl.y+y+h), &pix); } }
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