From e56d66a033b533f26872a20cb2052473962a0f2e Mon Sep 17 00:00:00 2001 From: 4ugustus Date: Tue, 8 Mar 2022 16:22:04 +0000 Subject: [PATCH] fix the FPE in tiffcrop (#393) CVE: CVE-2022-0909 Upstream-Status: Backport Signed-off-by: Ross Burton --- libtiff/tif_dir.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libtiff/tif_dir.c b/libtiff/tif_dir.c index a6c254f..77da6ea 100644 --- a/libtiff/tif_dir.c +++ b/libtiff/tif_dir.c @@ -335,13 +335,13 @@ _TIFFVSetField(TIFF* tif, uint32_t tag, va_list ap) break; case TIFFTAG_XRESOLUTION: dblval = va_arg(ap, double); - if( dblval < 0 ) + if( dblval != dblval || dblval < 0 ) goto badvaluedouble; td->td_xresolution = _TIFFClampDoubleToFloat( dblval ); break; case TIFFTAG_YRESOLUTION: dblval = va_arg(ap, double); - if( dblval < 0 ) + if( dblval != dblval || dblval < 0 ) goto badvaluedouble; td->td_yresolution = _TIFFClampDoubleToFloat( dblval ); break;