1 files changed, 335 insertions, 131 deletions

diff --git a/meta/classes/cve-check.bbclass b/meta/classes/cve-check.bbclass
index 8086cf05e9..5e6bae1757 100644
--- a/meta/classes/cve-check.bbclass
+++ b/meta/classes/cve-check.bbclass
@@ -20,13 +20,13 @@
 # the only method to check against CVEs. Running this tool
 # doesn't guarantee your packages are free of CVEs.
 
-# The product name that the CVE database uses.  Defaults to BPN, but may need to
+# The product name that the CVE database uses defaults to BPN, but may need to
 # be overriden per recipe (for example tiff.bb sets CVE_PRODUCT=libtiff).
 CVE_PRODUCT ??= "${BPN}"
 CVE_VERSION ??= "${PV}"
 
 CVE_CHECK_DB_DIR ?= "${DL_DIR}/CVE_CHECK"
-CVE_CHECK_DB_FILE ?= "${CVE_CHECK_DB_DIR}/nvdcve_1.1.db"
+CVE_CHECK_DB_FILE ?= "${CVE_CHECK_DB_DIR}/nvdcve_2.db"
 CVE_CHECK_DB_FILE_LOCK ?= "${CVE_CHECK_DB_FILE}.lock"
 
 CVE_CHECK_LOG ?= "${T}/cve.log"
@@ -34,15 +34,33 @@ CVE_CHECK_TMP_FILE ?= "${TMPDIR}/cve_check"
 CVE_CHECK_SUMMARY_DIR ?= "${LOG_DIR}/cve"
 CVE_CHECK_SUMMARY_FILE_NAME ?= "cve-summary"
 CVE_CHECK_SUMMARY_FILE ?= "${CVE_CHECK_SUMMARY_DIR}/${CVE_CHECK_SUMMARY_FILE_NAME}"
+CVE_CHECK_SUMMARY_FILE_NAME_JSON = "cve-summary.json"
+CVE_CHECK_SUMMARY_INDEX_PATH = "${CVE_CHECK_SUMMARY_DIR}/cve-summary-index.txt"
+
+CVE_CHECK_LOG_JSON ?= "${T}/cve.json"
 
 CVE_CHECK_DIR ??= "${DEPLOY_DIR}/cve"
 CVE_CHECK_RECIPE_FILE ?= "${CVE_CHECK_DIR}/${PN}"
-CVE_CHECK_MANIFEST ?= "${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.cve"
+CVE_CHECK_RECIPE_FILE_JSON ?= "${CVE_CHECK_DIR}/${PN}_cve.json"
+CVE_CHECK_MANIFEST ?= "${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.cve"
+CVE_CHECK_MANIFEST_JSON ?= "${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.json"
 CVE_CHECK_COPY_FILES ??= "1"
 CVE_CHECK_CREATE_MANIFEST ??= "1"
 
+# Report Patched or Ignored/Whitelisted CVEs
 CVE_CHECK_REPORT_PATCHED ??= "1"
 
+CVE_CHECK_SHOW_WARNINGS ??= "1"
+
+# Provide text output
+CVE_CHECK_FORMAT_TEXT ??= "1"
+
+# Provide JSON output - disabled by default for backward compatibility
+CVE_CHECK_FORMAT_JSON ??= "0"
+
+# Check for packages without CVEs (no issues or missing product name)
+CVE_CHECK_COVERAGE ??= "1"
+
 # Whitelist for packages (PN)
 CVE_CHECK_PN_WHITELIST ?= ""
 
@@ -53,12 +71,43 @@ CVE_CHECK_PN_WHITELIST ?= ""
 #
 CVE_CHECK_WHITELIST ?= ""
 
-# set to "alphabetical" for version using single alphabetical character as increament release
+# Layers to be excluded
+CVE_CHECK_LAYER_EXCLUDELIST ??= ""
+
+# Layers to be included
+CVE_CHECK_LAYER_INCLUDELIST ??= ""
+
+
+# set to "alphabetical" for version using single alphabetical character as increment release
 CVE_VERSION_SUFFIX ??= ""
 
+def generate_json_report(d, out_path, link_path):
+    if os.path.exists(d.getVar("CVE_CHECK_SUMMARY_INDEX_PATH")):
+        import json
+        from oe.cve_check import cve_check_merge_jsons, update_symlinks
+
+        bb.note("Generating JSON CVE summary")
+        index_file = d.getVar("CVE_CHECK_SUMMARY_INDEX_PATH")
+        summary = {"version":"1", "package": []}
+        with open(index_file) as f:
+            filename = f.readline()
+            while filename:
+                with open(filename.rstrip()) as j:
+                    data = json.load(j)
+                    cve_check_merge_jsons(summary, data)
+                filename = f.readline()
+
+        summary["package"].sort(key=lambda d: d['name'])
+
+        with open(out_path, "w") as f:
+            json.dump(summary, f, indent=2)
+
+        update_symlinks(out_path, link_path)
+
 python cve_save_summary_handler () {
     import shutil
     import datetime
+    from oe.cve_check import update_symlinks
 
     cve_tmp_file = d.getVar("CVE_CHECK_TMP_FILE")
 
@@ -71,13 +120,15 @@ python cve_save_summary_handler () {
 
     if os.path.exists(cve_tmp_file):
         shutil.copyfile(cve_tmp_file, cve_summary_file)
-
-        if cve_summary_file and os.path.exists(cve_summary_file):
-            cvefile_link = os.path.join(cvelogpath, cve_summary_name)
-
-            if os.path.exists(os.path.realpath(cvefile_link)):
-                os.remove(cvefile_link)
-            os.symlink(os.path.basename(cve_summary_file), cvefile_link)
+        cvefile_link = os.path.join(cvelogpath, cve_summary_name)
+        update_symlinks(cve_summary_file, cvefile_link)
+        bb.plain("Complete CVE report summary created at: %s" % cvefile_link)
+
+    if d.getVar("CVE_CHECK_FORMAT_JSON") == "1":
+        json_summary_link_name = os.path.join(cvelogpath, d.getVar("CVE_CHECK_SUMMARY_FILE_NAME_JSON"))
+        json_summary_name = os.path.join(cvelogpath, "%s-%s.json" % (cve_summary_name, timestamp))
+        generate_json_report(d, json_summary_name, json_summary_link_name)
+        bb.plain("Complete CVE JSON report summary created at: %s" % json_summary_link_name)
 }
 
 addhandler cve_save_summary_handler
@@ -87,23 +138,25 @@ python do_cve_check () {
     """
     Check recipe for patched and unpatched CVEs
     """
+    from oe.cve_check import get_patched_cves
 
-    if os.path.exists(d.getVar("CVE_CHECK_DB_FILE")):
-        try:
-            patched_cves = get_patches_cves(d)
-        except FileNotFoundError:
-            bb.fatal("Failure in searching patches")
-        whitelisted, patched, unpatched = check_cves(d, patched_cves)
-        if patched or unpatched:
-            cve_data = get_cve_info(d, patched + unpatched)
-            cve_write_data(d, patched, unpatched, whitelisted, cve_data)
-    else:
-        bb.note("No CVE database found, skipping CVE check")
+    with bb.utils.fileslocked([d.getVar("CVE_CHECK_DB_FILE_LOCK")], shared=True):
+        if os.path.exists(d.getVar("CVE_CHECK_DB_FILE")):
+            try:
+                patched_cves = get_patched_cves(d)
+            except FileNotFoundError:
+                bb.fatal("Failure in searching patches")
+            ignored, patched, unpatched, status = check_cves(d, patched_cves)
+            if patched or unpatched or (d.getVar("CVE_CHECK_COVERAGE") == "1" and status):
+                cve_data = get_cve_info(d, patched + unpatched + ignored)
+                cve_write_data(d, patched, unpatched, ignored, cve_data, status)
+        else:
+            bb.note("No CVE database found, skipping CVE check")
 
 }
 
-addtask cve_check before do_build after do_fetch
-do_cve_check[depends] = "cve-update-db-native:do_populate_cve_db"
+addtask cve_check before do_build
+do_cve_check[depends] = "cve-update-nvd2-native:do_fetch"
 do_cve_check[nostamp] = "1"
 
 python cve_check_cleanup () {
@@ -111,10 +164,11 @@ python cve_check_cleanup () {
     Delete the file used to gather all the CVE information.
     """
     bb.utils.remove(e.data.getVar("CVE_CHECK_TMP_FILE"))
+    bb.utils.remove(e.data.getVar("CVE_CHECK_SUMMARY_INDEX_PATH"))
 }
 
 addhandler cve_check_cleanup
-cve_check_cleanup[eventmask] = "bb.cooker.CookerExit"
+cve_check_cleanup[eventmask] = "bb.event.BuildCompleted"
 
 python cve_check_write_rootfs_manifest () {
     """
@@ -122,115 +176,107 @@ python cve_check_write_rootfs_manifest () {
     """
 
     import shutil
+    import json
+    from oe.rootfs import image_list_installed_packages
+    from oe.cve_check import cve_check_merge_jsons, update_symlinks
 
     if d.getVar("CVE_CHECK_COPY_FILES") == "1":
         deploy_file = d.getVar("CVE_CHECK_RECIPE_FILE")
         if os.path.exists(deploy_file):
             bb.utils.remove(deploy_file)
-
-    if os.path.exists(d.getVar("CVE_CHECK_TMP_FILE")):
-        bb.note("Writing rootfs CVE manifest")
-        deploy_dir = d.getVar("DEPLOY_DIR_IMAGE")
-        link_name = d.getVar("IMAGE_LINK_NAME")
+        deploy_file_json = d.getVar("CVE_CHECK_RECIPE_FILE_JSON")
+        if os.path.exists(deploy_file_json):
+            bb.utils.remove(deploy_file_json)
+
+    # Create a list of relevant recipies
+    recipies = set()
+    for pkg in list(image_list_installed_packages(d)):
+        pkg_info = os.path.join(d.getVar('PKGDATA_DIR'),
+                                'runtime-reverse', pkg)
+        pkg_data = oe.packagedata.read_pkgdatafile(pkg_info)
+        recipies.add(pkg_data["PN"])
+
+    bb.note("Writing rootfs CVE manifest")
+    deploy_dir = d.getVar("IMGDEPLOYDIR")
+    link_name = d.getVar("IMAGE_LINK_NAME")
+
+    json_data = {"version":"1", "package": []}
+    text_data = ""
+    enable_json = d.getVar("CVE_CHECK_FORMAT_JSON") == "1"
+    enable_text = d.getVar("CVE_CHECK_FORMAT_TEXT") == "1"
+
+    save_pn = d.getVar("PN")
+
+    for pkg in recipies:
+        # To be able to use the CVE_CHECK_RECIPE_FILE variable we have to evaluate
+        # it with the different PN names set each time.
+        d.setVar("PN", pkg)
+        if enable_text:
+            pkgfilepath = d.getVar("CVE_CHECK_RECIPE_FILE")
+            if os.path.exists(pkgfilepath):
+                with open(pkgfilepath) as pfile:
+                    text_data += pfile.read()
+
+        if enable_json:
+            pkgfilepath = d.getVar("CVE_CHECK_RECIPE_FILE_JSON")
+            if os.path.exists(pkgfilepath):
+                with open(pkgfilepath) as j:
+                    data = json.load(j)
+                    cve_check_merge_jsons(json_data, data)
+
+    d.setVar("PN", save_pn)
+
+    if enable_text:
+        link_path = os.path.join(deploy_dir, "%s.cve" % link_name)
         manifest_name = d.getVar("CVE_CHECK_MANIFEST")
-        cve_tmp_file = d.getVar("CVE_CHECK_TMP_FILE")
-
-        shutil.copyfile(cve_tmp_file, manifest_name)
 
-        if manifest_name and os.path.exists(manifest_name):
-            manifest_link = os.path.join(deploy_dir, "%s.cve" % link_name)
-            # If we already have another manifest, update symlinks
-            if os.path.exists(os.path.realpath(manifest_link)):
-                os.remove(manifest_link)
-            os.symlink(os.path.basename(manifest_name), manifest_link)
-            bb.plain("Image CVE report stored in: %s" % manifest_name)
-}
-
-ROOTFS_POSTPROCESS_COMMAND_prepend = "${@'cve_check_write_rootfs_manifest; ' if d.getVar('CVE_CHECK_CREATE_MANIFEST') == '1' else ''}"
-do_rootfs[recrdeptask] += "${@'do_cve_check' if d.getVar('CVE_CHECK_CREATE_MANIFEST') == '1' else ''}"
+        with open(manifest_name, "w") as f:
+            f.write(text_data)
 
-def get_patches_cves(d):
-    """
-    Get patches that solve CVEs using the "CVE: " tag.
-    """
+        update_symlinks(manifest_name, link_path)
+        bb.plain("Image CVE report stored in: %s" % manifest_name)
 
-    import re
+    if enable_json:
+        link_path = os.path.join(deploy_dir, "%s.json" % link_name)
+        manifest_name = d.getVar("CVE_CHECK_MANIFEST_JSON")
 
-    pn = d.getVar("PN")
-    cve_match = re.compile("CVE:( CVE\-\d{4}\-\d+)+")
-
-    # Matches last CVE-1234-211432 in the file name, also if written
-    # with small letters. Not supporting multiple CVE id's in a single
-    # file name.
-    cve_file_name_match = re.compile(".*([Cc][Vv][Ee]\-\d{4}\-\d+)")
-
-    patched_cves = set()
-    bb.debug(2, "Looking for patches that solves CVEs for %s" % pn)
-    for url in src_patches(d):
-        patch_file = bb.fetch.decodeurl(url)[2]
-
-        if not os.path.isfile(patch_file):
-            bb.error("File Not found: %s" % patch_file)
-            raise FileNotFoundError
-
-        # Check patch file name for CVE ID
-        fname_match = cve_file_name_match.search(patch_file)
-        if fname_match:
-            cve = fname_match.group(1).upper()
-            patched_cves.add(cve)
-            bb.debug(2, "Found CVE %s from patch file name %s" % (cve, patch_file))
-
-        with open(patch_file, "r", encoding="utf-8") as f:
-            try:
-                patch_text = f.read()
-            except UnicodeDecodeError:
-                bb.debug(1, "Failed to read patch %s using UTF-8 encoding"
-                        " trying with iso8859-1" %  patch_file)
-                f.close()
-                with open(patch_file, "r", encoding="iso8859-1") as f:
-                    patch_text = f.read()
-
-        # Search for one or more "CVE: " lines
-        text_match = False
-        for match in cve_match.finditer(patch_text):
-            # Get only the CVEs without the "CVE: " tag
-            cves = patch_text[match.start()+5:match.end()]
-            for cve in cves.split():
-                bb.debug(2, "Patch %s solves %s" % (patch_file, cve))
-                patched_cves.add(cve)
-                text_match = True
+        with open(manifest_name, "w") as f:
+            json.dump(json_data, f, indent=2)
 
-        if not fname_match and not text_match:
-            bb.debug(2, "Patch %s doesn't solve CVEs" % patch_file)
+        update_symlinks(manifest_name, link_path)
+        bb.plain("Image CVE JSON report stored in: %s" % manifest_name)
+}
 
-    return patched_cves
+ROOTFS_POSTPROCESS_COMMAND_prepend = "${@'cve_check_write_rootfs_manifest; ' if d.getVar('CVE_CHECK_CREATE_MANIFEST') == '1' else ''}"
+do_rootfs[recrdeptask] += "${@'do_cve_check' if d.getVar('CVE_CHECK_CREATE_MANIFEST') == '1' else ''}"
+do_populate_sdk[recrdeptask] += "${@'do_cve_check' if d.getVar('CVE_CHECK_CREATE_MANIFEST') == '1' else ''}"
 
 def check_cves(d, patched_cves):
     """
     Connect to the NVD database and find unpatched cves.
     """
-    from oe.cve_check import Version
+    from oe.cve_check import Version, convert_cve_version
 
     pn = d.getVar("PN")
     real_pv = d.getVar("PV")
     suffix = d.getVar("CVE_VERSION_SUFFIX")
 
     cves_unpatched = []
+    cves_ignored = []
+    cves_status = []
+    cves_in_recipe = False
     # CVE_PRODUCT can contain more than one product (eg. curl/libcurl)
     products = d.getVar("CVE_PRODUCT").split()
     # If this has been unset then we're not scanning for CVEs here (for example, image recipes)
     if not products:
-        return ([], [], [])
+        return ([], [], [], [])
     pv = d.getVar("CVE_VERSION").split("+git")[0]
 
-    # If the recipe has been whitlisted we return empty lists
+    # If the recipe has been whitelisted we return empty lists
     if pn in d.getVar("CVE_CHECK_PN_WHITELIST").split():
         bb.note("Recipe has been whitelisted, skipping check")
-        return ([], [], [])
+        return ([], [], [], [])
 
-    old_cve_whitelist =  d.getVar("CVE_CHECK_CVE_WHITELIST")
-    if old_cve_whitelist:
-        bb.warn("CVE_CHECK_CVE_WHITELIST is deprecated, please use CVE_CHECK_WHITELIST.")
     cve_whitelist = d.getVar("CVE_CHECK_WHITELIST").split()
 
     import sqlite3
@@ -239,28 +285,42 @@ def check_cves(d, patched_cves):
 
     # For each of the known product names (e.g. curl has CPEs using curl and libcurl)...
     for product in products:
+        cves_in_product = False
         if ":" in product:
             vendor, product = product.split(":", 1)
         else:
             vendor = "%"
 
         # Find all relevant CVE IDs.
-        for cverow in conn.execute("SELECT DISTINCT ID FROM PRODUCTS WHERE PRODUCT IS ? AND VENDOR LIKE ?", (product, vendor)):
+        cve_cursor = conn.execute("SELECT DISTINCT ID FROM PRODUCTS WHERE PRODUCT IS ? AND VENDOR LIKE ?", (product, vendor))
+        for cverow in cve_cursor:
             cve = cverow[0]
 
             if cve in cve_whitelist:
                 bb.note("%s-%s has been whitelisted for %s" % (product, pv, cve))
-                # TODO: this should be in the report as 'whitelisted'
-                patched_cves.add(cve)
+                cves_ignored.append(cve)
                 continue
             elif cve in patched_cves:
                 bb.note("%s has been patched" % (cve))
                 continue
+            # Write status once only for each product
+            if not cves_in_product:
+                cves_status.append([product, True])
+                cves_in_product = True
+                cves_in_recipe = True
 
             vulnerable = False
-            for row in conn.execute("SELECT * FROM PRODUCTS WHERE ID IS ? AND PRODUCT IS ? AND VENDOR LIKE ?", (cve, product, vendor)):
+            ignored = False
+
+            product_cursor = conn.execute("SELECT * FROM PRODUCTS WHERE ID IS ? AND PRODUCT IS ? AND VENDOR LIKE ?", (cve, product, vendor))
+            for row in product_cursor:
                 (_, _, _, version_start, operator_start, version_end, operator_end) = row
                 #bb.debug(2, "Evaluating row " + str(row))
+                if cve in cve_whitelist:
+                    ignored = True
+
+                version_start = convert_cve_version(version_start)
+                version_end = convert_cve_version(version_end)
 
                 if (operator_start == '=' and pv == version_start) or version_start == '-':
                     vulnerable = True
@@ -293,18 +353,27 @@ def check_cves(d, patched_cves):
                         vulnerable = vulnerable_start or vulnerable_end
 
                 if vulnerable:
-                    bb.note("%s-%s is vulnerable to %s" % (pn, real_pv, cve))
-                    cves_unpatched.append(cve)
+                    if ignored:
+                        bb.note("%s is ignored in %s-%s" % (cve, pn, real_pv))
+                        cves_ignored.append(cve)
+                    else:
+                        bb.note("%s-%s is vulnerable to %s" % (pn, real_pv, cve))
+                        cves_unpatched.append(cve)
                     break
+            product_cursor.close()
 
             if not vulnerable:
                 bb.note("%s-%s is not vulnerable to %s" % (pn, real_pv, cve))
-                # TODO: not patched but not vulnerable
                 patched_cves.add(cve)
+        cve_cursor.close()
+
+        if not cves_in_product:
+            bb.note("No CVE records found for product %s, pn %s" % (product, pn))
+            cves_status.append([product, False])
 
     conn.close()
 
-    return (list(cve_whitelist), list(patched_cves), cves_unpatched)
+    return (list(cves_ignored), list(patched_cves), cves_unpatched, cves_status)
 
 def get_cve_info(d, cves):
     """
@@ -314,21 +383,23 @@ def get_cve_info(d, cves):
     import sqlite3
 
     cve_data = {}
-    conn = sqlite3.connect(d.getVar("CVE_CHECK_DB_FILE"))
+    db_file = d.expand("file:${CVE_CHECK_DB_FILE}?mode=ro")
+    conn = sqlite3.connect(db_file, uri=True)
 
     for cve in cves:
-        for row in conn.execute("SELECT * FROM NVD WHERE ID IS ?", (cve,)):
+        cursor = conn.execute("SELECT * FROM NVD WHERE ID IS ?", (cve,))
+        for row in cursor:
             cve_data[row[0]] = {}
             cve_data[row[0]]["summary"] = row[1]
             cve_data[row[0]]["scorev2"] = row[2]
             cve_data[row[0]]["scorev3"] = row[3]
             cve_data[row[0]]["modified"] = row[4]
             cve_data[row[0]]["vector"] = row[5]
-
+        cursor.close()
     conn.close()
     return cve_data
 
-def cve_write_data(d, patched, unpatched, whitelisted, cve_data):
+def cve_write_data_text(d, patched, unpatched, whitelisted, cve_data):
     """
     Write CVE information in WORKDIR; and to CVE_CHECK_DIR, and
     CVE manifest if enabled.
@@ -338,20 +409,38 @@ def cve_write_data(d, patched, unpatched, whitelisted, cve_data):
     fdir_name  = d.getVar("FILE_DIRNAME")
     layer = fdir_name.split("/")[-3]
 
-    nvd_link = "https://web.nvd.nist.gov/view/vuln/detail?vulnId="
+    include_layers = d.getVar("CVE_CHECK_LAYER_INCLUDELIST").split()
+    exclude_layers = d.getVar("CVE_CHECK_LAYER_EXCLUDELIST").split()
+
+    report_all = d.getVar("CVE_CHECK_REPORT_PATCHED") == "1"
+
+    if exclude_layers and layer in exclude_layers:
+        return
+
+    if include_layers and layer not in include_layers:
+        return
+
+    # Early exit, the text format does not report packages without CVEs
+    if not patched+unpatched+whitelisted:
+        return
+
+    nvd_link = "https://nvd.nist.gov/vuln/detail/"
     write_string = ""
     unpatched_cves = []
     bb.utils.mkdirhier(os.path.dirname(cve_file))
 
     for cve in sorted(cve_data):
         is_patched = cve in patched
-        if is_patched and (d.getVar("CVE_CHECK_REPORT_PATCHED") != "1"):
+        is_ignored = cve in whitelisted
+
+        if (is_patched or is_ignored) and not report_all:
             continue
+
         write_string += "LAYER: %s\n" % layer
         write_string += "PACKAGE NAME: %s\n" % d.getVar("PN")
         write_string += "PACKAGE VERSION: %s%s\n" % (d.getVar("EXTENDPE"), d.getVar("PV"))
         write_string += "CVE: %s\n" % cve
-        if cve in whitelisted:
+        if is_ignored:
             write_string += "CVE STATUS: Whitelisted\n"
         elif is_patched:
             write_string += "CVE STATUS: Patched\n"
@@ -364,23 +453,138 @@ def cve_write_data(d, patched, unpatched, whitelisted, cve_data):
         write_string += "VECTOR: %s\n" % cve_data[cve]["vector"]
         write_string += "MORE INFORMATION: %s%s\n\n" % (nvd_link, cve)
 
-    if unpatched_cves:
+    if unpatched_cves and d.getVar("CVE_CHECK_SHOW_WARNINGS") == "1":
         bb.warn("Found unpatched CVE (%s), for more information check %s" % (" ".join(unpatched_cves),cve_file))
 
-    if write_string:
-        with open(cve_file, "w") as f:
-            bb.note("Writing file %s with CVE information" % cve_file)
+    with open(cve_file, "w") as f:
+        bb.note("Writing file %s with CVE information" % cve_file)
+        f.write(write_string)
+
+    if d.getVar("CVE_CHECK_COPY_FILES") == "1":
+        deploy_file = d.getVar("CVE_CHECK_RECIPE_FILE")
+        bb.utils.mkdirhier(os.path.dirname(deploy_file))
+        with open(deploy_file, "w") as f:
+            f.write(write_string)
+
+    if d.getVar("CVE_CHECK_CREATE_MANIFEST") == "1":
+        cvelogpath = d.getVar("CVE_CHECK_SUMMARY_DIR")
+        bb.utils.mkdirhier(cvelogpath)
+
+        with open(d.getVar("CVE_CHECK_TMP_FILE"), "a") as f:
+            f.write("%s" % write_string)
+
+def cve_check_write_json_output(d, output, direct_file, deploy_file, manifest_file):
+    """
+    Write CVE information in the JSON format: to WORKDIR; and to
+    CVE_CHECK_DIR, if CVE manifest if enabled, write fragment
+    files that will be assembled at the end in cve_check_write_rootfs_manifest.
+    """
+
+    import json
+
+    write_string = json.dumps(output, indent=2)
+    with open(direct_file, "w") as f:
+        bb.note("Writing file %s with CVE information" % direct_file)
+        f.write(write_string)
+
+    if d.getVar("CVE_CHECK_COPY_FILES") == "1":
+        bb.utils.mkdirhier(os.path.dirname(deploy_file))
+        with open(deploy_file, "w") as f:
+            f.write(write_string)
+
+    if d.getVar("CVE_CHECK_CREATE_MANIFEST") == "1":
+        cvelogpath = d.getVar("CVE_CHECK_SUMMARY_DIR")
+        index_path = d.getVar("CVE_CHECK_SUMMARY_INDEX_PATH")
+        bb.utils.mkdirhier(cvelogpath)
+        fragment_file = os.path.basename(deploy_file)
+        fragment_path = os.path.join(cvelogpath, fragment_file)
+        with open(fragment_path, "w") as f:
             f.write(write_string)
+        with open(index_path, "a+") as f:
+            f.write("%s\n" % fragment_path)
+
+def cve_write_data_json(d, patched, unpatched, ignored, cve_data, cve_status):
+    """
+    Prepare CVE data for the JSON format, then write it.
+    """
+
+    output = {"version":"1", "package": []}
+    nvd_link = "https://nvd.nist.gov/vuln/detail/"
+
+    fdir_name  = d.getVar("FILE_DIRNAME")
+    layer = fdir_name.split("/")[-3]
+
+    include_layers = d.getVar("CVE_CHECK_LAYER_INCLUDELIST").split()
+    exclude_layers = d.getVar("CVE_CHECK_LAYER_EXCLUDELIST").split()
+
+    report_all = d.getVar("CVE_CHECK_REPORT_PATCHED") == "1"
+
+    if exclude_layers and layer in exclude_layers:
+        return
+
+    if include_layers and layer not in include_layers:
+        return
+
+    unpatched_cves = []
+
+    product_data = []
+    for s in cve_status:
+        p = {"product": s[0], "cvesInRecord": "Yes"}
+        if s[1] == False:
+            p["cvesInRecord"] = "No"
+        product_data.append(p)
+
+    package_version = "%s%s" % (d.getVar("EXTENDPE"), d.getVar("PV"))
+    package_data = {
+        "name" : d.getVar("PN"),
+        "layer" : layer,
+        "version" : package_version,
+        "products": product_data
+    }
+    cve_list = []
+
+    for cve in sorted(cve_data):
+        is_patched = cve in patched
+        is_ignored = cve in ignored
+        status = "Unpatched"
+        if (is_patched or is_ignored) and not report_all:
+            continue
+        if is_ignored:
+            status = "Ignored"
+        elif is_patched:
+            status = "Patched"
+        else:
+            # default value of status is Unpatched
+            unpatched_cves.append(cve)
+
+        issue_link = "%s%s" % (nvd_link, cve)
 
-        if d.getVar("CVE_CHECK_COPY_FILES") == "1":
-            deploy_file = d.getVar("CVE_CHECK_RECIPE_FILE")
-            bb.utils.mkdirhier(os.path.dirname(deploy_file))
-            with open(deploy_file, "w") as f:
-                f.write(write_string)
+        cve_item = {
+            "id" : cve,
+            "summary" : cve_data[cve]["summary"],
+            "scorev2" : cve_data[cve]["scorev2"],
+            "scorev3" : cve_data[cve]["scorev3"],
+            "vector" : cve_data[cve]["vector"],
+            "status" : status,
+            "link": issue_link
+        }
+        cve_list.append(cve_item)
 
-        if d.getVar("CVE_CHECK_CREATE_MANIFEST") == "1":
-            cvelogpath = d.getVar("CVE_CHECK_SUMMARY_DIR")
-            bb.utils.mkdirhier(cvelogpath)
+    package_data["issue"] = cve_list
+    output["package"].append(package_data)
+
+    direct_file = d.getVar("CVE_CHECK_LOG_JSON")
+    deploy_file = d.getVar("CVE_CHECK_RECIPE_FILE_JSON")
+    manifest_file = d.getVar("CVE_CHECK_SUMMARY_FILE_NAME_JSON")
+
+    cve_check_write_json_output(d, output, direct_file, deploy_file, manifest_file)
+
+def cve_write_data(d, patched, unpatched, ignored, cve_data, status):
+    """
+    Write CVE data in each enabled format.
+    """
 
-            with open(d.getVar("CVE_CHECK_TMP_FILE"), "a") as f:
-                f.write("%s" % write_string)
+    if d.getVar("CVE_CHECK_FORMAT_TEXT") == "1":
+        cve_write_data_text(d, patched, unpatched, ignored, cve_data)
+    if d.getVar("CVE_CHECK_FORMAT_JSON") == "1":
+        cve_write_data_json(d, patched, unpatched, ignored, cve_data, status)