Hello, The August 8 and 9 2019 recent php 7.2.21 updates and updates of php-pear php-pecl php-http, etc. cause Horde 5 Groupware Webmail edition (5.1.17 from debian repos) to stop working. Request advice:

We had horde 5 groupware Webmail edition from debian stretch repos working fine on php7.2 until todays update:

[UPGRADE] libgd3:amd64 2.2.5-5.1+0~20190307222942.3+stretch~1.gbp1f9ff3 -> 2.2.5-5.2+0~20190808.4+debian9~1.gbp6d9343 [UPGRADE] php-apcu-bc:amd64 1.0.4-4+0~20190218103118.8+stretch~1.gbpa05194 -> 1.0.5-1+0~20190808.9+debian9~1.gbp90a6a0 [UPGRADE] php-http:amd64 3.2.0+2.6.0-2+0~20190219220936.5+stretch~1.gbp085e64 -> 3.2.1+2.6.0-1+0~20190808.6+debian9~1.gbpbd8342 [UPGRADE] php-imagick:amd64 3.4.3-4+0~20190217142022.9+stretch~1.gbpba1eeb -> 3.4.4-1+0~20190808.10+debian9~1.gbpc5da26 [UPGRADE] php-pear:amd64 1:1.10.8+submodules+notgz-1+0~20190219091011.9+stretch~1.gbp1a209a -> 1:1.10.9+submodules+notgz-1+0~20190808.10+debian9~1.gbp296d25 [UPGRADE] php-pecl-http:amd64 3.2.0+2.6.0-2+0~20190219220936.5+stretch~1.gbp085e64 -> 3.2.1+2.6.0-1+0~20190808.6+debian9~1.gbpbd8342 [UPGRADE] php-redis:amd64 4.3.0-1+0~20190606080331.12+stretch~1.gbp0171a6 -> 5.0.2+4.3.0-2+0~20190809.14+debian9~1.gbp070358

We have disabled redis and php-redis and still have the same error on both a test and production server. (using roundcube to send this message :-))

We have a login screen and we are setup to use imp to authenticate, and when we try to login we get a blank page with an error message stating that no data was sent and "ERR_EMPTY_RESPONSE" listed. We did the php7.2 upgrades 2 days ago, and everything worked fine afterwards. It was only after the above upgrades that we can no longer login to any of the domains on the mails servers.

The only error in the logs (this server uses apache 2.4 latest ):

/usr/sbin/apache2: symbol lookup error: /usr/lib/php/20170718/http.so: undefined symbol: uidna_IDNToASCII

(could this error, combined with todays php-http update be causing the error? We are using the sury repos for stretch.

We are logging in at: https://mail.example.com/horde/login.php and the return url is https://mail.example.com/horde/imp/dynamic.php?page=mailbox (on ms edge and chrome browsers) or https://mail.example.com/horde/imp/basic.php?mailbox=SU5CT1g&page=mailbox if we use "basic" login.

On Opera (for what it's worth) the behavior is even stranger: the login screen remains, the URL never changes, and the username-email address and the password disappear!

In the syslog we appear to have a valid login:

Aug 10 16:45:58 server1 dovecot: imap-login: Login: user=<i...@example.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=9240, TLS, session=<qxVXWcSPauZ/AAAB> Aug 10 16:45:58 server1 HORDE: [horde] Login success for i...@example.com to horde (valid.ip.v.4) [pid 3057 on line 163 of "/usr/share/horde/login.php"] Aug 10 16:45:58 server1 HORDE: [imp] Login success for i...@example.com (valid.ip.v.4) to {imap://localhost/} [pid 3057 on line 156 of "/usr/share/horde/imp/lib/Auth.php"] Aug 10 16:45:58 server1 dovecot: imap(i...@example.com): Logged out in=124 out=825 Aug 10 16:45:59 server1 dovecot: imap-login: Login: user=<i...@example.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=9242, TLS, session=<Sk5hWcSPbOZ/AAAB> Aug 10 16:45:59 server1 dovecot: imap(i...@example.com): Connection closed in=302 out=17126 Aug 10 16:46:00 server1 dovecot: imap-login: Login: user=<i...@example.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=9244, TLS, session=<sttvWcSPbuZ/AAAB> Aug 10 16:46:00 server1 dovecot: imap(i...@example.com): Connection closed in=302 out=17118

So, it appears to be working but we can't see anything on any browser, except the login screen.

I realize that you don't officially support php7.2 yet (you should and 7.3 for performance and because everything below 7.2 is slowly being deprecated), but can you give any advice about where to solve this error without installing and using php7.1.

Any help greatly appreciated.

Best,

Ed
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