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openSUSE:Maintenance:17742
jhead.openSUSE_Backports_SLE-15-SP3_Update
jhead-CVE-2022-41751-1.patch
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File jhead-CVE-2022-41751-1.patch of Package jhead.openSUSE_Backports_SLE-15-SP3_Update
Index: jhead-3.00/jhead.c =================================================================== --- jhead-3.00.orig/jhead.c +++ jhead-3.00/jhead.c @@ -765,7 +765,15 @@ static int RegenerateThumbnail(const cha return FALSE; } - sprintf(ThumbnailGenCommand, "mogrify -thumbnail %dx%d \"%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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