Initial cleanups for syntax errors

cves/2017/CVE-2017-5638.yaml

@@ -5,7 +5,7 @@ info:
   author: Random_Robbie
   severity: critical
   description: |
-    Apache Struts 2.3.x before 2.3.32 and 2.5.x before 2.5.10.1 is susceptible to remote command injection attacks. The Jakarta Multipart parser has incorrect exception handling and error-message generation during file upload attempts, which can allow an attacker to execute arbitrary commands via a crafted Content-Type, Content-Disposition, or Content-Length HTTP header. This was exploited in March 2017 with a Content-Type header containing a #cmd= string. 
+    Apache Struts 2.3.x before 2.3.32 and 2.5.x before 2.5.10.1 is susceptible to remote command injection attacks. The Jakarta Multipart parser has incorrect exception handling and error-message generation during file upload attempts, which can allow an attacker to execute arbitrary commands via a crafted Content-Type, Content-Disposition, or Content-Length HTTP header. This was exploited in March 2017 with a Content-Type header containing a #cmd= string.
   reference:
     - https://github.com/mazen160/struts-pwn
     - https://isc.sans.edu/diary/22169

iot/envision-gateway.yaml

@@ -3,7 +3,7 @@ id: envision-gateway
 info:
   name: EnvisionGateway Scheduler Panel - Detect
   author: dhiyaneshDK
-  severity: medium
+  severity: info
   description: EnvisionGateway scheduler panel was detected.
   reference:
     - https://www.exploit-db.com/ghdb/7315

vulnerabilities/mobileiron/mobileiron-log4j-jndi-rce.yaml

@@ -12,7 +12,6 @@ info:
     - https://www.zdnet.com/article/mobileiron-customers-urged-to-patch-systems-due-to-potential-log4j-exploitation/
     - https://logging.apache.org/log4j/2.x/security.html
     - https://nvd.nist.gov/vuln/detail/CVE-2021-44228
-  remediation: Upgrade to version 2.14.2 or higher of MobileIron. If this is not possible, several log4j exploit workarounds are available.
   classification:
     cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
     cvss-score: 10