+++ This bug was initially created as a clone of Bug #2071343 +++

Description of problem:
With openssl-3.0.0:

$ LANG=tr_TR.utf8 curl -L https://google.com
Segmentation fault (core dumped)

and openssl-3.0.2 in F36+:

$ LANG=tr_TR.utf8 curl -L https://google.com
curl: (35) error:03000072:digital envelope routines::decode error

This is also affecting rpm-ostree:
see the original report at
https://github.com/fedora-silverblue/issue-tracker/issues/241

Version-Release number of selected component (if applicable):
openssl-libs-3.0.2-1.fc36.x86_64

How reproducible:
100%

Steps to Reproduce:
0. install glibc-langpack-tr if glibc-all-langpacks not installed
1. LANG=tr_TR.utf8 curl -Lv https://google.com

Actual results:
*   Trying 142.251.12.100:443...
* Connected to google.com (142.251.12.100) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
*  CAfile: /etc/pki/tls/certs/ca-bundle.crt
*  CApath: none
* TLSv1.0 (OUT), TLS header, Certificate Status (22):
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS header, Certificate Status (22):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS header, Finished (20):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8):
* TLSv1.3 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (OUT), TLS header, Unknown (21):
* TLSv1.3 (OUT), TLS alert, bad certificate (554):
* error:03000072:digital envelope routines::decode error
* Closing connection 0
curl: (35) error:03000072:digital envelope routines::decode error

or a segfault with 3.0.0.

Expected results:
No error, as with other locales.

Additional info:
My naive guess is that maybe some glibc char function might be being misused, which is only triggered by some particular locale(s) like Turkish?

--- Additional comment from Onuralp Sezer on 2022-04-03 13:08:20 UTC ---