Dear team, 

I'm getting segfault when starting a stunnel. Here is a script to reproduce it with alpine: 
  incident_cf cat stunnel-segfault-crash.sh
#!/bin/bash
#
# Reproducer: stunnel 5.76+ segfaults when CAfile/cert are specified
# both globally and per-section with identical values.
#
# Requirements: Docker
#
# Expected output:
#   Segmentation fault
#   Exit: 139
#

docker run --rm alpine:latest sh -c '
apk add -q stunnel openssl &&
mkdir -p /app/managed &&
openssl req -x509 -newkey rsa:2048 -keyout /tmp/k.pem -out /tmp/c.pem -days 1 -noenc -subj /CN=test 2>/dev/null &&
cat /tmp/c.pem /tmp/k.pem > /app/managed/cert.pem &&
cp /tmp/c.pem /app/managed/ca-file.pem &&
echo "stunnel version: $(stunnel -version 2>&1 | grep "^stunnel")" &&
printf "foreground=yes\nverify=2\nCApath=/etc/ssl/certs\nCAfile=/app/managed/ca-file.pem\ncert=/app/managed/cert.pem\npid=/tmp/s.pid\n[c0]\nclient=yes\naccept=33195\nCAfile=/app/managed/ca-file.pem\ncert=/app/managed/cert.pem\nconnect=192.0.2.1:12195\n" > /tmp/test.conf &&
stunnel /tmp/test.conf 2>&1; echo "Exit: $?"
'

The workaround is removing the per-section CAfile/cert (relying on global values).
Is this a known bug? Where can I report it? 

Thanks!