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openSUSE:Backports:SLE-15-SP4:Update
jhead.17722
jhead-CVE-2022-41751-1.patch
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File jhead-CVE-2022-41751-1.patch of Package jhead.17722
Index: jhead-3.06.0.1/jhead.c =================================================================== --- jhead-3.06.0.1.orig/jhead.c +++ jhead-3.06.0.1/jhead.c @@ -782,7 +782,15 @@ static int RegenerateThumbnail(const cha return FALSE; } - sprintf(ThumbnailGenCommand, "mogrify -thumbnail %dx%d -quality 80 \"%s\"", + // Disallow characters in the filename that could be used to execute arbitrary + // shell commands with system() below. + if(strpbrk(FileName, "\";'&|`")) { + ErrNonfatal("Filename has invalid characters.", 0, 0); + return FALSE; + } + + snprintf(ThumbnailGenCommand, sizeof(ThumbnailGenCommand), + "mogrify -thumbnail %dx%d -quality 80 \"%s\"", RegenThumbnail, RegenThumbnail, FileName); if (system(ThumbnailGenCommand) == 0){
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