Add CVE details

modules/vulnerabilities/unix/local/sudo_baron/secgen_metadata.xml

@@ -41,6 +41,13 @@
         <name>.*Ubuntu.*</name>
     </conflict>
 
+    <cve>CVE-2021-3156</cve>
+    <cvss_base_score>7</cvss_base_score>
+    <cvss_vector>AV:N/AC:L/Au:N/C:C/I:C/A:C</cvss_vector>
+    <reference>https://nvd.nist.gov/vuln/detail/CVE-2023-22809</reference>
+    <software_name>Sudo</software_name>
+    <software_license>Misc</software_license>
+
     <CyBOK KA="MAT" topic="Attacks and exploitation">
         <keyword>EXPLOITATION</keyword>
         <keyword>EXPLOITATION FRAMEWORKS</keyword>