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Fixed HDFFV-10480 (CVE-2018-11206) and HDFFV-11159 (CVE-2018-14033) #417

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Mar 4, 2021
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27 changes: 17 additions & 10 deletions src/H5Ofill.c
Original file line number Diff line number Diff line change
Expand Up @@ -194,8 +194,9 @@ H5O_fill_new_decode(H5F_t H5_ATTR_UNUSED *f, H5O_t H5_ATTR_UNUSED *open_oh,
unsigned H5_ATTR_UNUSED mesg_flags, unsigned H5_ATTR_UNUSED *ioflags, size_t p_size,
const uint8_t *p)
{
H5O_fill_t *fill = NULL;
void * ret_value = NULL; /* Return value */
H5O_fill_t * fill = NULL;
const uint8_t *p_end = p + p_size - 1; /* End of the p buffer */
void * ret_value = NULL; /* Return value */

FUNC_ENTER_NOAPI_NOINIT

Expand Down Expand Up @@ -226,8 +227,11 @@ H5O_fill_new_decode(H5F_t H5_ATTR_UNUSED *f, H5O_t H5_ATTR_UNUSED *open_oh,
INT32DECODE(p, fill->size);
if (fill->size > 0) {
H5_CHECK_OVERFLOW(fill->size, ssize_t, size_t);
if ((size_t)fill->size > p_size)
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "destination buffer too small")

/* Ensure that fill size doesn't exceed buffer size, due to possible data corruption */
if (p + fill->size - 1 > p_end)
HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "fill size exceeds buffer size")

if (NULL == (fill->buf = H5MM_malloc((size_t)fill->size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for fill value")
H5MM_memcpy(fill->buf, p, (size_t)fill->size);
Expand Down Expand Up @@ -310,10 +314,11 @@ static void *
H5O_fill_old_decode(H5F_t *f, H5O_t *open_oh, unsigned H5_ATTR_UNUSED mesg_flags,
unsigned H5_ATTR_UNUSED *ioflags, size_t p_size, const uint8_t *p)
{
H5O_fill_t *fill = NULL; /* Decoded fill value message */
htri_t exists = FALSE;
H5T_t * dt = NULL;
void * ret_value = NULL; /* Return value */
H5O_fill_t * fill = NULL; /* Decoded fill value message */
htri_t exists = FALSE;
H5T_t * dt = NULL;
const uint8_t *p_end = p + p_size - 1; /* End of the p buffer */
void * ret_value = NULL; /* Return value */

FUNC_ENTER_NOAPI_NOINIT

Expand All @@ -334,8 +339,10 @@ H5O_fill_old_decode(H5F_t *f, H5O_t *open_oh, unsigned H5_ATTR_UNUSED mesg_flags
/* Only decode the fill value itself if there is one */
if (fill->size > 0) {
H5_CHECK_OVERFLOW(fill->size, ssize_t, size_t);
if ((size_t)fill->size > p_size)
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "destination buffer too small")

/* Ensure that fill size doesn't exceed buffer size, due to possible data corruption */
if (p + fill->size - 1 > p_end)
HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "fill size exceeds buffer size")

/* Get the datatype message */
if ((exists = H5O_msg_exists_oh(open_oh, H5O_DTYPE_ID)) < 0)
Expand Down
19 changes: 14 additions & 5 deletions src/H5Olayout.c
Original file line number Diff line number Diff line change
Expand Up @@ -90,12 +90,13 @@ H5FL_DEFINE(H5O_layout_t);
*/
static void *
H5O__layout_decode(H5F_t *f, H5O_t H5_ATTR_UNUSED *open_oh, unsigned H5_ATTR_UNUSED mesg_flags,
unsigned H5_ATTR_UNUSED *ioflags, size_t H5_ATTR_UNUSED p_size, const uint8_t *p)
unsigned H5_ATTR_UNUSED *ioflags, size_t p_size, const uint8_t *p)
{
H5O_layout_t *mesg = NULL;
uint8_t * heap_block = NULL;
unsigned u;
void * ret_value = NULL; /* Return value */
H5O_layout_t * mesg = NULL;
uint8_t * heap_block = NULL;
unsigned u;
const uint8_t *p_end = p + p_size - 1; /* End of the p buffer */
void * ret_value = NULL; /* Return value */

FUNC_ENTER_STATIC

Expand Down Expand Up @@ -179,6 +180,10 @@ H5O__layout_decode(H5F_t *f, H5O_t H5_ATTR_UNUSED *open_oh, unsigned H5_ATTR_UNU
if (mesg->type == H5D_COMPACT) {
UINT32DECODE(p, mesg->storage.u.compact.size);
if (mesg->storage.u.compact.size > 0) {
/* Ensure that size doesn't exceed buffer size, due to possible data corruption */
if (p + mesg->storage.u.compact.size - 1 > p_end)
HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "storage size exceeds buffer size")

if (NULL == (mesg->storage.u.compact.buf = H5MM_malloc(mesg->storage.u.compact.size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL,
"memory allocation failed for compact data buffer")
Expand All @@ -198,6 +203,10 @@ H5O__layout_decode(H5F_t *f, H5O_t H5_ATTR_UNUSED *open_oh, unsigned H5_ATTR_UNU
UINT16DECODE(p, mesg->storage.u.compact.size);

if (mesg->storage.u.compact.size > 0) {
/* Ensure that size doesn't exceed buffer size, due to possible data corruption */
if (p + mesg->storage.u.compact.size - 1 > p_end)
HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "storage size exceeds buffer size")

/* Allocate space for compact data */
if (NULL == (mesg->storage.u.compact.buf = H5MM_malloc(mesg->storage.u.compact.size)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTALLOC, NULL,
Expand Down