$NetBSD: patch-CVE-2022-22844,v 1.1 2022/03/25 08:36:37 nia Exp $
https://gitlab.com/libtiff/libtiff/-/issues/355
This fixes CVE-2022-22844.
--- tools/tiffset.c.orig 2021-03-07 11:39:11.000000000 +0000
+++ tools/tiffset.c
@@ -146,9 +146,19 @@ main(int argc, char* argv[])
arg_index++;
if (TIFFFieldDataType(fip) == TIFF_ASCII) {
- if (TIFFSetField(tiff, TIFFFieldTag(fip), argv[arg_index]) != 1)
- fprintf( stderr, "Failed to set %s=%s\n",
- TIFFFieldName(fip), argv[arg_index] );
+ if(TIFFFieldPassCount( fip )) {
+ size_t len;
+ len = strlen(argv[arg_index]) + 1;
+ if (len > UINT16_MAX || TIFFSetField(tiff, TIFFFieldTag(fip),
+ (uint16_t)len, argv[arg_index]) != 1)
+ fprintf( stderr, "Failed to set %s=%s\n",
+ TIFFFieldName(fip), argv[arg_index] );
+ } else {
+ if (TIFFSetField(tiff, TIFFFieldTag(fip),
+ argv[arg_index]) != 1)
+ fprintf( stderr, "Failed to set %s=%s\n",
+ TIFFFieldName(fip), argv[arg_index] );
+ }
} else if (TIFFFieldWriteCount(fip) > 0
|| TIFFFieldWriteCount(fip) == TIFF_VARIABLE) {
int ret = 1;