Intermediate certificate expired

[Milan P . Stanić]

Hi Thomas,

Tried to upgrade latest ncurses this morning for Alpine linux but
download failed with this error:
-----------------------------------------------
>>> ncurses: Fetching 
>>> https://invisible-mirror.net/archives/ncurses/current/ncurses-6.2-20211002.tgz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (60) SSL certificate problem: certificate has expired
More details here: https://curl.se/docs/sslcerts.html

curl failed to verify the legitimacy of the server and therefore could not
establish a secure connection to it. To learn more about this situation and
how to fix it, please visit the web page mentioned above.
>>> ERROR: ncurses: checksum failed
-----------------------------------------------

Then checked with openssl running this:
-----------------------------------------------

openssl s_client -connect 160.153.42.69:443 -servername invisible-mirror.net  
-showcerts
CONNECTED(00000003)
depth=2 O = Digital Signature Trust Co., CN = DST Root CA X3
verify error:num=10:certificate has expired
notAfter=Sep 30 14:01:15 2021 GMT
verify return:1
depth=2 O = Digital Signature Trust Co., CN = DST Root CA X3
notAfter=Sep 30 14:01:15 2021 GMT
verify return:1
depth=1 C = US, O = Let's Encrypt, CN = R3
verify error:num=10:certificate has expired
notAfter=Sep 29 19:21:40 2021 GMT
verify return:1
depth=1 C = US, O = Let's Encrypt, CN = R3
notAfter=Sep 29 19:21:40 2021 GMT
verify return:1
depth=0 CN = invisible-mirror.net
notAfter=Oct 30 17:19:46 2021 GMT
verify return:1
---
Certificate chain
 0 s:CN = invisible-mirror.net
   i:C = US, O = Let's Encrypt, CN = R3
-----------------------------------------------

Looks like intermediate certificate should be upgraded in server
certificate bundle.

https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/

Kind regards