security : Letsencrypt CAA bug and some certificates needs to be revoked

If you use Letsencrypt,

• check whether you have received an email regarding certificate revoking from LetsEncrypt
• if in doubt, go ahead and renew the SSL certs

( https://community.letsencrypt.org/t/2020-02-29-caa-rechecking-bug/114591 )

noreply@letsencrypt.org

Mar 3, 2020, 9:45 PM (2 days ago)

to migrate2cloud
We recently discovered a bug in the Let's Encrypt certificate authority code,
described here:

https://community.letsencrypt.org/t/2020-02-29-caa-rechecking-bug/114591

Unfortunately, this means we need to revoke the certificates that were affected
by this bug, which includes one or more of your certificates. To avoid
disruption, you'll need to renew and replace your affected certificate(s) by
Wednesday, March 4, 2020. We sincerely apologize for the issue.

If you're not able to renew your certificate by March 4, the date we are
required to revoke these certificates, visitors to your site will see security
warnings until you do renew the certificate. Your ACME client documentation
should explain how to renew.

If you are using Certbot, the command to renew is:

certbot renew --force-renewal

If you need help, please visit our community support forum:
https://community.letsencrypt.org/t/revoking-certain-certificates-on-march-4/114864

Please search thoroughly for a solution before you post a new question. Let's
Encrypt staff will help our community try to answer unresolved questions as
quickly as possible.