diff --git a/check_yum/check_yum b/check_yum/check_yum
index 8e930bf..56564fc 100644
--- a/check_yum/check_yum
+++ b/check_yum/check_yum
@@ -305,9 +305,28 @@ class YumTester:
                        + "of this plugin. If the problem persists, then "      \
                        + "please contact the author for a fix")
 
-        return number_packages
+        return number_packages, "'updates'=%s" % (number_packages)
 
+    def get_security_updateinfo(self):
+        """Fetches errata numbers and package names"""
+
+        cmd = "%s list-security" % YUM
+
+        output = self.run(cmd)
+
+        errata = []
+
+        for line in output:
+	    try:
+                if line.split()[1] != "security":
+                    continue
+            except:
+                continue
+	    (advisoryid, etype, package) = line.split()
+            errata.append( { "name": package, "advisory": advisoryid } )
     
+        return errata
+
     def get_security_updates(self):
         """Gets all updates, but differentiates between
         security and normal updates. Returns a tuple of the number 
@@ -317,10 +336,10 @@ class YumTester:
 
         output = self.run(cmd)
         
-	re_security_summary_rhel5 = re.compile("Needed \d+ of \d+ packages, for security")
-	re_security_summary_rhel6 = re.compile("\d+ package\(s\) needed for security, out of \d+ available")
-	re_no_security_updates_available_rhel5 = re.compile("No packages needed, for security, \d+ available")
-	re_no_security_updates_available_rhel6 = re.compile("No packages needed for security; \d+ packages available")
+        re_security_summary_rhel5 = re.compile("Needed \d+ of \d+ packages, for security")
+        re_security_summary_rhel6 = re.compile("\d+ package\(s\) needed for security, out of \d+ available")
+        re_no_security_updates_available_rhel5 = re.compile("No packages needed, for security, \d+ available")
+        re_no_security_updates_available_rhel6 = re.compile("No packages needed for security; \d+ packages available")
         summary_line_found = False
         for line in output:
             if re_no_security_updates_available_rhel5.match(line):
@@ -394,7 +413,7 @@ class YumTester:
         status  = UNKNOWN
         message = "code error - please contact author for a fix"
 
-        number_updates = self.get_all_updates()
+        number_updates, perfdata = self.get_all_updates()
         if number_updates == 0:
             status = OK
             message = "0 Updates Available"
@@ -405,7 +424,7 @@ class YumTester:
             else:
                 message = "%s Updates Available" % number_updates
 
-        return status, message
+        return status, message, perfdata
 
 
     def test_security_updates(self):
@@ -417,6 +436,8 @@ class YumTester:
         
         number_security_updates, number_other_updates = \
                                                     self.get_security_updates()
+
+	perfdata = "'security_updates'=%s 'other_updates'=%s" % (number_security_updates, number_other_updates)
         if number_security_updates == 0:
             status = OK
             message = "0 Security Updates Available"
@@ -427,7 +448,6 @@ class YumTester:
             elif number_security_updates > 1:
                 message = "%s Security Updates Available" \
                                                     % number_security_updates
-    
         if number_other_updates != 0:
             if self.warn_on_any_update and status != CRITICAL:
                 status = WARNING
@@ -437,7 +457,12 @@ class YumTester:
                 message += ". %s Non-Security Updates Available" \
                                                         % number_other_updates
                                 
-        return status, message
+        if number_security_updates and self.long_output:
+            errata = self.get_security_updateinfo()
+            for e in errata:
+                message += "\n%s - %s" % (e['advisory'], e['name'])
+    
+        return status, message, perfdata
 
 
     def vprint(self, threshold, message):
@@ -508,6 +533,13 @@ def main():
                        help="Explicitly disables a repository when calling YUM "
                           + "Can take a comma separated list of repositories")
 
+    parser.add_option( "-l",
+                       "--long-output",
+                       action="store_true",
+                       dest="long_output",
+                       help="Shows more detailed output including the errata "
+                          + "ID.")
+
     parser.add_option( "-t",
                        "--timeout",
                        dest="timeout",
@@ -544,14 +576,15 @@ def main():
     tester.timeout                     = options.timeout
     tester.verbosity                   = options.verbosity
     tester.warn_on_any_update          = options.warn_on_any_update
+    tester.long_output                 = options.long_output
 
     if options.version:
         print "%s - Version %s\n" \
             % (__title__, __version__)
         sys.exit(OK)
     
-    result, output = tester.test_yum_updates()
-    end(result, output)
+    result, output, perfdata = tester.test_yum_updates()
+    end(result, output, perfdata)
 
 
 if __name__ == "__main__":