File H5IMget_image_info-H5Sget_simple_extent_dims-do... of Package hdf5

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File H5IMget_image_info-H5Sget_simple_extent_dims-does-not-exceed-array-size.patch of Package hdf5 (Revision 186a5ae390ac75e0b090c0ff09a446ef)

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From: Egbert Eich <eich@suse.com>
Date: Tue Sep 27 10:29:56 2022 +0200
Subject: H5IMget_image_info: H5Sget_simple_extent_dims() does not exceed array size
Patch-mainline: Not yet
Git-repo: ssh://eich@192.168.122.1:/home/eich/sources/HPC/hdf5
Git-commit: c1baab0937c8956a15efc41240f68d573c7b7324
References:

Malformed hdf5 files may provide more dimensions than the array dim[] is
able to hold. Check number of elements first by calling
H5Sget_simple_extent_dims() with NULL for both 'dims' and 'maxdims' arguments.
This will cause the function to return only the number of dimensions.

This fixes CVE-2018-17439

Signed-off-by: Egbert Eich <eich@suse.com>
Signed-off-by: Egbert Eich <eich@suse.de>
---
 hl/src/H5IM.c | 2 ++
 1 file changed, 2 insertions(+)
diff --git a/hl/src/H5IM.c b/hl/src/H5IM.c
index ff10d573c7..e37c696e25 100644
--- a/hl/src/H5IM.c
+++ b/hl/src/H5IM.c
@@ -283,6 +283,8 @@ H5IMget_image_info(hid_t loc_id, const char *dset_name, hsize_t *width, hsize_t
     if ((sid = H5Dget_space(did)) < 0)
         goto out;
 
+    if (H5Sget_simple_extent_dims(sid, NULL, NULL) > IMAGE24_RANK)
+        goto out;
     /* Get dimensions */
     if (H5Sget_simple_extent_dims(sid, dims, NULL) < 0)
         goto out;

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File H5IMget_image_info-H5Sget_simple_extent_dims-does-not-exceed-array-size.patch of Package hdf5 (Revision 186a5ae390ac75e0b090c0ff09a446ef)

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