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-rw-r--r--hl/src/H5IM.c3
-rw-r--r--hl/tools/gif2h5/hdf2gif.c43
-rw-r--r--release_docs/RELEASE.txt12
-rw-r--r--src/H5Oattr.c36
4 files changed, 63 insertions, 31 deletions
diff --git a/hl/src/H5IM.c b/hl/src/H5IM.c
index 2a7ed9b..6f7414b 100644
--- a/hl/src/H5IM.c
+++ b/hl/src/H5IM.c
@@ -274,7 +274,8 @@ herr_t H5IMget_image_info( hid_t loc_id,
return -1;
/* Try to find the attribute "INTERLACE_MODE" on the >>image<< dataset */
- has_attr = H5LT_find_attribute(did, "INTERLACE_MODE");
+ if ((has_attr = H5LT_find_attribute(did, "INTERLACE_MODE")) < 0)
+ goto out;
/* It exists, get it */
if(has_attr == 1)
diff --git a/hl/tools/gif2h5/hdf2gif.c b/hl/tools/gif2h5/hdf2gif.c
index e32facb..f1a9593 100644
--- a/hl/tools/gif2h5/hdf2gif.c
+++ b/hl/tools/gif2h5/hdf2gif.c
@@ -18,8 +18,8 @@
#include "h5tools.h"
#include "h5tools_utils.h"
-#define IMAGE_WIDTH_MAX 65535 /* unsigned 16bits integer */
-#define IMAGE_HEIGHT_MAX 65535 /* unsigned 16bits integer */
+#define IMAGE_WIDTH_MAX 65535 /* unsigned 16bits integer */
+#define IMAGE_HEIGHT_MAX 65535 /* unsigned 16bits integer */
int EndianOrder;
@@ -149,30 +149,41 @@ int main(int argc , char **argv)
goto out;
}
- /* read image */
+ /* get image's information */
if ( H5IMget_image_info( fid, image_name, &width, &height, &planes, interlace, &npals ) < 0 )
+ {
+ fprintf(stderr , "Unable to get information of the image. Aborting.\n");
goto out;
+ }
- if (width > IMAGE_WIDTH_MAX || height > IMAGE_HEIGHT_MAX){
- fprintf(stderr, "HDF5 image is too large. Limit is %d by %d.\n", IMAGE_WIDTH_MAX, IMAGE_HEIGHT_MAX);
- goto out;
- }
+ if (width > IMAGE_WIDTH_MAX || height > IMAGE_HEIGHT_MAX)
+ {
+ fprintf(stderr, "HDF5 image is too large. Limit is %d by %d.\n", IMAGE_WIDTH_MAX, IMAGE_HEIGHT_MAX);
+ goto out;
+ }
- /* tool can handle single plane images only. */
- if (planes > 1){
- fprintf(stderr, "Cannot handle multiple planes image\n");
- goto out;
- }
+ /* tool can handle single plane images only. */
+ if (planes > 1)
+ {
+ fprintf(stderr, "Cannot handle multiple planes image\n");
+ goto out;
+ }
Image = (GIFBYTE*) malloc( (size_t) width * (size_t) height );
if ( H5IMread_image( fid, image_name, Image ) < 0 )
+ {
+ fprintf(stderr , "Unable to read the image. Aborting.\n");
goto out;
+ }
if (npals)
{
if ( H5IMget_palette_info( fid, image_name, 0, pal_dims ) < 0 )
+ {
+ fprintf(stderr , "Unable to get information of the palette. Aborting.\n");
goto out;
+ }
pal = (GIFBYTE*) malloc( (size_t) pal_dims[0] * (size_t) pal_dims[1] );
@@ -211,9 +222,9 @@ int main(int argc , char **argv)
numcols = 256;
for (i = 0 ; i < numcols ; i++)
{
- Red[i] = (GIFBYTE)(255 - i);
- Green[i] = (GIFBYTE)(255 - i);
- Blue[i] = (GIFBYTE)(255 - i);
+ Red[i] = (GIFBYTE)(255 - i);
+ Green[i] = (GIFBYTE)(255 - i);
+ Blue[i] = (GIFBYTE)(255 - i);
}
}
else
@@ -246,7 +257,7 @@ int main(int argc , char **argv)
if (j==i)
{
/* wasn't found */
- pc2nc[i] = (GIFBYTE)nc;
+ pc2nc[i] = (GIFBYTE)nc;
r1[nc] = Red[i];
g1[nc] = Green[i];
b1[nc] = Blue[i];
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index ab601f5..85359cd 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -317,6 +317,18 @@ Bug Fixes since HDF5-1.10.5 release
Library
-------
+ - Fixed CVE-2018-17435
+
+ The tool h52gif produced a segfault when the size of an attribute
+ message was corrupted and caused a buffer overflow.
+
+ The problem was fixed by verifying the attribute message's size
+ against the buffer size before accessing the buffer. h52gif was
+ also fixed to display the failure instead of silently exiting
+ after the segfault was eliminated.
+
+ (BMR - 2020/6/19, HDFFV-10591)
+
- Improved peformance when creating a large number of small datasets by
retrieving default property values from the API context instead of doing
skip list searches.
diff --git a/src/H5Oattr.c b/src/H5Oattr.c
index 7a17c6a..c8dd822 100644
--- a/src/H5Oattr.c
+++ b/src/H5Oattr.c
@@ -109,7 +109,10 @@ H5FL_EXTERN(H5S_extent_t);
USAGE
void *H5O_attr_decode(f, mesg_flags, p)
H5F_t *f; IN: pointer to the HDF5 file struct
- unsigned mesg_flags; IN: Message flags to influence decoding
+ H5O_t *open_oh; IN: pointer to the object header
+ unsigned mesg_flags; IN: message flags to influence decoding
+ unsigned *ioflags; IN: flags for decoding
+ size_t p_size; IN: size of buffer *p
const uint8_t *p; IN: the raw information buffer
RETURNS
Pointer to the new message in native order on success, NULL on failure
@@ -120,16 +123,16 @@ H5FL_EXTERN(H5S_extent_t);
--------------------------------------------------------------------------*/
static void *
H5O_attr_decode(H5F_t *f, H5O_t *open_oh, unsigned H5_ATTR_UNUSED mesg_flags,
- unsigned *ioflags, size_t H5_ATTR_UNUSED p_size, const uint8_t *p)
+ unsigned *ioflags, size_t p_size, const uint8_t *p)
{
- H5A_t *attr = NULL;
- H5S_extent_t *extent; /*extent dimensionality information */
- size_t name_len; /*attribute name length */
- size_t dt_size; /* Datatype size */
- hssize_t sds_size; /* Signed Dataspace size */
- hsize_t ds_size; /* Dataspace size */
- unsigned flags = 0; /* Attribute flags */
- H5A_t *ret_value = NULL; /* Return value */
+ H5A_t *attr = NULL;
+ H5S_extent_t *extent; /*extent dimensionality information */
+ size_t name_len; /*attribute name length */
+ size_t dt_size; /* Datatype size */
+ hssize_t sds_size; /* Signed Dataspace size */
+ hsize_t ds_size; /* Dataspace size */
+ unsigned flags = 0; /* Attribute flags */
+ H5A_t *ret_value = NULL; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
@@ -138,7 +141,7 @@ H5O_attr_decode(H5F_t *f, H5O_t *open_oh, unsigned H5_ATTR_UNUSED mesg_flags,
HDassert(p);
if(NULL == (attr = H5FL_CALLOC(H5A_t)))
- HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
+ HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
if(NULL == (attr->shared = H5FL_CALLOC(H5A_shared_t)))
HGOTO_ERROR(H5E_FILE, H5E_NOSPACE, NULL, "can't allocate shared attr structure")
@@ -146,7 +149,7 @@ H5O_attr_decode(H5F_t *f, H5O_t *open_oh, unsigned H5_ATTR_UNUSED mesg_flags,
/* Version number */
attr->shared->version = *p++;
if(attr->shared->version < H5O_ATTR_VERSION_1 || attr->shared->version > H5O_ATTR_VERSION_LATEST)
- HGOTO_ERROR(H5E_ATTR, H5E_CANTLOAD, NULL, "bad version number for attribute message")
+ HGOTO_ERROR(H5E_ATTR, H5E_CANTLOAD, NULL, "bad version number for attribute message")
/* Get the flags byte if we have a later version of the attribute */
if(attr->shared->version >= H5O_ATTR_VERSION_2) {
@@ -176,7 +179,7 @@ H5O_attr_decode(H5F_t *f, H5O_t *open_oh, unsigned H5_ATTR_UNUSED mesg_flags,
/* Decode and store the name */
if(NULL == (attr->shared->name = H5MM_strdup((const char *)p)))
- HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
+ HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
/* Make an attempt to detect corrupted name or name length - HDFFV-10588 */
if(name_len != (HDstrlen(attr->shared->name) + 1))
@@ -200,7 +203,7 @@ H5O_attr_decode(H5F_t *f, H5O_t *open_oh, unsigned H5_ATTR_UNUSED mesg_flags,
* What's actually shared, though, is only the extent.
*/
if(NULL == (attr->shared->ds = H5FL_CALLOC(H5S_t)))
- HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
+ HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
/* Decode attribute's dataspace extent */
if((extent = (H5S_extent_t *)(H5O_MSG_SDSPACE->decode)(f, open_oh,
@@ -238,6 +241,11 @@ H5O_attr_decode(H5F_t *f, H5O_t *open_oh, unsigned H5_ATTR_UNUSED mesg_flags,
/* Go get the data */
if(attr->shared->data_size) {
+ /* Ensure that data size doesn't exceed buffer size, in case of
+ it's being corrupted in the file */
+ if(attr->shared->data_size > p_size)
+ HGOTO_ERROR(H5E_RESOURCE, H5E_OVERFLOW, NULL, "data size exceeds buffer size")
+
if(NULL == (attr->shared->data = H5FL_BLK_MALLOC(attr_buf, attr->shared->data_size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
H5MM_memcpy(attr->shared->data, p, attr->shared->data_size);
generated by cgit v0.12 at 2024-11-02 11:18:24 (GMT)