diff options
Diffstat (limited to 'poky/meta/recipes-core/meta/cve-update-db-native.bb')
| -rw-r--r-- | poky/meta/recipes-core/meta/cve-update-db-native.bb | 127 |
1 files changed, 67 insertions, 60 deletions
diff --git a/poky/meta/recipes-core/meta/cve-update-db-native.bb b/poky/meta/recipes-core/meta/cve-update-db-native.bb index f27ade40db..0cd3a1c153 100644 --- a/poky/meta/recipes-core/meta/cve-update-db-native.bb +++ b/poky/meta/recipes-core/meta/cve-update-db-native.bb @@ -13,15 +13,8 @@ deltask do_install deltask do_populate_sysroot python () { - cve_check_db_file = d.getVar("CVE_CHECK_DB_FILE") - if not cve_check_db_file: + if not bb.data.inherits_class("cve-check", d): raise bb.parse.SkipRecipe("Skip recipe when cve-check class is not loaded.") - - if os.path.exists("%s-journal" % cve_check_db_file ): - os.remove("%s-journal" % cve_check_db_file) - - if os.path.exists(cve_check_db_file): - os.remove(cve_check_db_file) } python do_populate_cve_db() { @@ -29,6 +22,7 @@ python do_populate_cve_db() { Update NVD database with json data feed """ import bb.utils + import bb.progress import sqlite3, urllib, urllib.parse, shutil, gzip from datetime import date @@ -39,7 +33,14 @@ python do_populate_cve_db() { db_file = d.getVar("CVE_CHECK_DB_FILE") db_dir = os.path.dirname(db_file) - json_tmpfile = os.path.join(db_dir, 'nvd.json.gz') + + if os.path.exists("{0}-journal".format(db_file)): + # If a journal is present the last update might have been interrupted. In that case, + # just wipe any leftovers and force the DB to be recreated. + os.remove("{0}-journal".format(db_file)) + + if os.path.exists(db_file): + os.remove(db_file) # Don't refresh the database more than once an hour try: @@ -49,10 +50,7 @@ python do_populate_cve_db() { except OSError: pass - cve_f = open(os.path.join(d.getVar("TMPDIR"), 'cve_check'), 'a') - - if not os.path.isdir(db_dir): - os.mkdir(db_dir) + bb.utils.mkdirhier(db_dir) # Connect to database conn = sqlite3.connect(db_file) @@ -60,56 +58,60 @@ python do_populate_cve_db() { initialize_db(c) - for year in range(YEAR_START, date.today().year + 1): - year_url = BASE_URL + str(year) - meta_url = year_url + ".meta" - json_url = year_url + ".json.gz" - - # Retrieve meta last modified date - try: - response = urllib.request.urlopen(meta_url) - except urllib.error.URLError as e: - cve_f.write('Warning: CVE db update error, Unable to fetch CVE data.\n\n') - bb.warn("Failed to fetch CVE data (%s)" % e.reason) - return - - if response: - for l in response.read().decode("utf-8").splitlines(): - key, value = l.split(":", 1) - if key == "lastModifiedDate": - last_modified = value - break - else: - bb.warn("Cannot parse CVE metadata, update failed") - return - - # Compare with current db last modified date - c.execute("select DATE from META where YEAR = ?", (year,)) - meta = c.fetchone() - if not meta or meta[0] != last_modified: - # Clear products table entries corresponding to current year - c.execute("delete from PRODUCTS where ID like ?", ('CVE-%d%%' % year,)) + with bb.progress.ProgressHandler(d) as ph, open(os.path.join(d.getVar("TMPDIR"), 'cve_check'), 'a') as cve_f: + total_years = date.today().year + 1 - YEAR_START + for i, year in enumerate(range(YEAR_START, date.today().year + 1)): + ph.update((float(i + 1) / total_years) * 100) + year_url = BASE_URL + str(year) + meta_url = year_url + ".meta" + json_url = year_url + ".json.gz" - # Update db with current year json file + # Retrieve meta last modified date try: - response = urllib.request.urlopen(json_url) - if response: - update_db(c, gzip.decompress(response.read()).decode('utf-8')) - c.execute("insert or replace into META values (?, ?)", [year, last_modified]) + response = urllib.request.urlopen(meta_url) except urllib.error.URLError as e: - cve_f.write('Warning: CVE db update error, CVE data is outdated.\n\n') - bb.warn("Cannot parse CVE data (%s), update failed" % e.reason) + cve_f.write('Warning: CVE db update error, Unable to fetch CVE data.\n\n') + bb.warn("Failed to fetch CVE data (%s)" % e.reason) return - # Update success, set the date to cve_check file. - if year == date.today().year: - cve_f.write('CVE database update : %s\n\n' % date.today()) - - cve_f.close() - conn.commit() - conn.close() + if response: + for l in response.read().decode("utf-8").splitlines(): + key, value = l.split(":", 1) + if key == "lastModifiedDate": + last_modified = value + break + else: + bb.warn("Cannot parse CVE metadata, update failed") + return + + # Compare with current db last modified date + c.execute("select DATE from META where YEAR = ?", (year,)) + meta = c.fetchone() + if not meta or meta[0] != last_modified: + # Clear products table entries corresponding to current year + c.execute("delete from PRODUCTS where ID like ?", ('CVE-%d%%' % year,)) + + # Update db with current year json file + try: + response = urllib.request.urlopen(json_url) + if response: + update_db(c, gzip.decompress(response.read()).decode('utf-8')) + c.execute("insert or replace into META values (?, ?)", [year, last_modified]) + except urllib.error.URLError as e: + cve_f.write('Warning: CVE db update error, CVE data is outdated.\n\n') + bb.warn("Cannot parse CVE data (%s), update failed" % e.reason) + return + + # Update success, set the date to cve_check file. + if year == date.today().year: + cve_f.write('CVE database update : %s\n\n' % date.today()) + + conn.commit() + conn.close() } +do_populate_cve_db[lockfiles] += "${CVE_CHECK_DB_FILE_LOCK}" + def initialize_db(c): c.execute("CREATE TABLE IF NOT EXISTS META (YEAR INTEGER UNIQUE, DATE TEXT)") @@ -176,15 +178,20 @@ def update_db(c, jsondata): if not elt['impact']: continue + accessVector = None cveId = elt['cve']['CVE_data_meta']['ID'] cveDesc = elt['cve']['description']['description_data'][0]['value'] date = elt['lastModifiedDate'] - accessVector = elt['impact']['baseMetricV2']['cvssV2']['accessVector'] - cvssv2 = elt['impact']['baseMetricV2']['cvssV2']['baseScore'] - try: + accessVector = elt['impact']['baseMetricV2']['cvssV2']['accessVector'] + cvssv2 = elt['impact']['baseMetricV2']['cvssV2']['baseScore'] + except KeyError: + cvssv2 = 0.0 + try: + accessVector = accessVector or elt['impact']['baseMetricV3']['cvssV3']['attackVector'] cvssv3 = elt['impact']['baseMetricV3']['cvssV3']['baseScore'] - except: + except KeyError: + accessVector = accessVector or "UNKNOWN" cvssv3 = 0.0 c.execute("insert or replace into NVD values (?, ?, ?, ?, ?, ?)", |