doc: update Apr 2021 security releases blog

Author: danbev

build.js

@@ -278,7 +278,7 @@ function getSource (callback) {
         },
         banner: {
           visible: true,
-          text: 'New security releases to be made available April 6, 2021',
+          text: 'New security releases now available for 15.x, 14.x, 12.x and 10.x release lines',
           link: '/en/blog/vulnerability/april-2021-security-releases/'
         }
       }

locale/en/blog/vulnerability/april-2021-security-releases.md

@@ -1,34 +1,44 @@
 ---
-date: 2021-03-31T16:00:00.000Z
+date: 2021-04-06T16:00:00.000Z
 category: vulnerability
 title: April 2021 Security Releases
 slug: april-2021-security-releases
 layout: blog-post.hbs
 author: Daniel Bevenius
 ---
 
-# Summary
+## _(Update 6-Apr-2021)_ Security releases available
 
-The Node.js project will release new versions of all supported release lines on or shortly after Tuesday, April 6th, 2021.
+Updates are now available for v10,x, v12.x, v14.x and v15.x Node.js release lines for the following issues.
 
-* Three High severity issues
+### OpenSSL - CA certificate check bypass with X509_V_FLAG_X509_STRICT (High) (CVE-2021-3450)
 
-## Impact
+This is a vulnerability in OpenSSL which may be exploited through Node.js. You can read more about it in
+https://www.openssl.org/news/secadv/20210325.txt
 
-The 15.x release line of Node.js is vulnerable to two high severity issues.
+Impacts:
+* All versions of the 15.x, 14.x, 12.x and 10.x releases lines
 
-The 14.x release line of Node.js is vulnerable to three high severity issues.
+### OpenSSL - NULL pointer deref in signature_algorithms processing (High) (CVE-2021-3449)
 
-The 12.x release line of Node.js is vulnerable to three high severity issues.
+This is a vulnerability in OpenSSL which may be exploited through Node.js. You can read more about it in
+https://www.openssl.org/news/secadv/20210325.txt
 
-The 10.x release line of Node.js is vulnerable to three high severity issues.
+Impacts:
+* All versions of the 15.x, 14.x, 12.x and 10.x releases lines
 
-## Release timing
+### npm upgrade - Update y18n to fix Prototype-Pollution (High) (CVE-2020-7774)
 
-Releases will be available at, or shortly after, Tuesday, April 6th, 2021.
+This is a vulnerability in the y18n npm module which may be exploited by prototype pollution.
+You can read more about it in
+https://github.com/advisories/GHSA-c4w7-xm78-47vh
 
-## Contact and future updates
+Impacts:
+* All versions of the 14.x, 12.x and 10.x releases lines
 
-The current Node.js security policy can be found at https://nodejs.org/en/security/. Please follow the process outlined in https://github.com/nodejs/node/blob/master/SECURITY.md if you wish to report a vulnerability in Node.js.
+## Downloads and release details
 
-Subscribe to the low-volume announcement-only nodejs-sec mailing list at https://groups.google.com/forum/#!forum/nodejs-sec to stay up to date on security vulnerabilities and security-related releases of Node.js and the projects maintained in the nodejs GitHub organization.
+* [Node.js v10.24.1 (LTS)](https://nodejs.org/en/blog/release/v10.24.1/)
+* [Node.js v12.21.1 (LTS)](https://nodejs.org/en/blog/release/v12.21.1/)
+* [Node.js v14.16.1 (LTS)](https://nodejs.org/en/blog/release/v14.16.1/)
+* [Node.js v15.13.1 (Current)](https://nodejs.org/en/blog/release/v15.13.1/)