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29 lines
898 B
Diff
29 lines
898 B
Diff
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From 275735d0354e39c0ac1dc3c0db2120d6f31d1990 Mon Sep 17 00:00:00 2001
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From: Even Rouault <even.rouault@spatialys.com>
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Date: Mon, 27 Jun 2022 16:09:43 +0200
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Subject: [PATCH] _TIFFCheckFieldIsValidForCodec(): return FALSE when passed a
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codec-specific tag and the codec is not configured (fixes #433)
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This avoids crashes when querying such tags
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---
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libtiff/tif_dirinfo.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/libtiff/tif_dirinfo.c b/libtiff/tif_dirinfo.c
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index c30f569b..3371cb5c 100644
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--- a/libtiff/tif_dirinfo.c
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+++ b/libtiff/tif_dirinfo.c
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@@ -1191,6 +1191,9 @@ _TIFFCheckFieldIsValidForCodec(TIFF *tif, ttag_t tag)
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default:
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return 1;
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}
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+ if( !TIFFIsCODECConfigured(tif->tif_dir.td_compression) ) {
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+ return 0;
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+ }
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/* Check if codec specific tags are allowed for the current
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* compression scheme (codec) */
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switch (tif->tif_dir.td_compression) {
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--
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GitLab
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