Merge pull request #1479 in HDFFV/hdf5 from ~BMRIBLER/hdf5_bmr_fixbug:develop to develop

HDFFV-10586 and HDFFV-10588

* commit '25cd1ab02b9ddaf58a4f5422f4ab4fde411e050a':
  Added test for HDFFV-10588
  Fixed HDFFV-10684
  Fixed HDFFV-10586 and HDFFV-10588 Description:     HDFFV-10586 CVE-2018-17434  Divide by zero inh5repack_filters         Added a check for zero value     HDFFV-10588 CVE-2018-17437  Memory leak in H5O_dtype_decode_helper         This is actually an Invalid read issue.  It was found that the         attribute name length in an attribute message was corrupted,         which caused the buffer pointer to be advanced too far and later         caused an invalid read.         Added a check to detect attribute name and its length mismatch.  The         fix is not perfect, but it'll reduce the chance of this issue when a         name length is corrupted or the attribute name is corrupted. Platforms tested:     Linux/64 (jelly)     Linux/64 (platypus)     Darwin (osx1010test)

1 files changed, 101 insertions, 0 deletions

diff --git a/test/titerate.c b/test/titerate.c
index de652a7..87ddfb8 100644
--- a/test/titerate.c
+++ b/test/titerate.c
@@ -20,6 +20,7 @@
 *************************************************************/
 
 #include "testhdf5.h"
+#include "H5srcdir.h"
 
 #define DATAFILE   "titerate.h5"
 
@@ -53,6 +54,17 @@ typedef struct {
     iter_enum command;      /* The type of return value */
 } iter_info;
 
+/* Definition for test_corrupted_attnamelen */
+#define CORRUPTED_ATNAMELEN_FILE   "memleak_H5O_dtype_decode_helper_H5Odtype.h5"
+#define DSET_NAME   "image"
+typedef struct searched_err_t {
+    char message[256];
+    bool found;
+} searched_err_t;
+
+/* Call back function for test_corrupted_attnamelen */
+static int find_err_msg_cb(unsigned n, const H5E_error2_t *err_desc, void *_client_data);
+
 /* Local functions */
 int iter_strcmp(const void *s1, const void *s2);
 int iter_strcmp2(const void *s1, const void *s2);
@@ -915,6 +927,92 @@ static void test_links(hid_t fapl)
     CHECK(ret, FAIL, "H5Fclose");
 } /* test_links() */
 
+/*-------------------------------------------------------------------------
+ * Function:    find_err_msg_cb
+ *
+ * Purpose:     Callback function to find the given error message.
+ *              Helper function for test_corrupted_attnamelen().
+ *
+ * Return:      H5_ITER_STOP when the message is found
+ *              H5_ITER_CONT, otherwise
+ *
+ *-------------------------------------------------------------------------
+ */
+static int
+find_err_msg_cb(unsigned n, const H5E_error2_t *err_desc, void *_client_data)
+{
+    int status = H5_ITER_CONT;
+    searched_err_t *searched_err = (searched_err_t *)_client_data;
+
+    if (searched_err == NULL)
+        return -1;
+    
+    /* If the searched error message is found, stop the iteration */
+    if (err_desc->desc != NULL && strcmp(err_desc->desc, searched_err->message) == 0)
+    {
+        searched_err->found = true;
+        status = H5_ITER_STOP;
+    }
+    return status;
+} /* end find_err_msg_cb() */
+
+/**************************************************************************
+**
+**  test_corrupted_attnamelen(): Test the fix for the JIRA issue HDFFV-10588,
+**                      where corrupted attribute's name length can be
+**                      detected and invalid read can be avoided.
+**
+**************************************************************************/
+static void test_corrupted_attnamelen(void)
+{
+    hid_t          fid = -1;            /* File ID */
+    hid_t          did = -1;            /* Dataset ID */
+    searched_err_t err_caught;          /* Data to be passed to callback func */
+    int            err_status;          /* Status returned by H5Aiterate2 */
+    herr_t         ret;                 /* Return value */
+    const char *testfile = H5_get_srcdir_filename(CORRUPTED_ATNAMELEN_FILE); /* Corrected test file name */
+
+    const char *err_message = "attribute name has different length than stored length";
+                        /* the error message produced when the failure occurs */
+
+    /* Output message about test being performed */
+    MESSAGE(5, ("Testing the Handling of Corrupted Attribute's Name Length\n"));
+
+    fid = H5Fopen(testfile, H5F_ACC_RDONLY, H5P_DEFAULT);
+    CHECK(fid, FAIL, "H5Fopen");
+
+    /* Open the dataset */
+    did = H5Dopen2(fid, DSET_NAME, H5P_DEFAULT);
+    CHECK(did, FAIL, "H5Dopen2");
+
+    /* Call H5Aiterate2 to trigger the failure in HDFFV-10588.  Failure should
+       occur in the decoding stage, so some arguments are not needed. */
+    err_status = H5Aiterate2(did, H5_INDEX_NAME, H5_ITER_INC, NULL, NULL, NULL);
+
+    /* Make sure the intended error was caught */
+    if(err_status == -1)
+    {
+        /* Initialize client data */
+        HDstrcpy(err_caught.message, err_message);
+        err_caught.found = false;
+
+        /* Look for the correct error message */
+        ret = H5Ewalk2(H5E_DEFAULT, H5E_WALK_UPWARD, find_err_msg_cb, &err_caught);
+        CHECK(ret, FAIL, "H5Ewalk2");
+
+        /* Fail if the indicated message is not found */
+        CHECK(err_caught.found, false, "test_corrupted_attnamelen: Expected error not found");
+    }
+
+    /* Close the dataset and file */
+    ret = H5Dclose(did);
+    CHECK(ret, FAIL, "H5Dclose");
+
+    ret = H5Fclose(fid);
+    CHECK(ret, FAIL, "H5Fclose");
+
+} /* test_corrupted_attnamelen() */
+
 /****************************************************************
 **
 **  test_iterate(): Main iteration testing routine.
@@ -951,6 +1049,9 @@ test_iterate(void)
         test_links(new_format ? fapl2 : fapl);              /* Test soft and hard link iteration */
     } /* end for */
 
+    /* Test the fix for issue HDFFV-10588 */
+    test_corrupted_attnamelen();
+
     /* Close FAPLs */
     ret = H5Pclose(fapl);
     CHECK(ret, FAIL, "H5Pclose");