Sympa 6.2.66 web interface returns "400 bad request" after upgrading to apache 2.4.52-1ubuntu4.10

[albsol]

We have an Ubuntu 22.04 server with Sympa "6.2.66" and apache2 "2.4.52-1ubuntu4.9" installed.

After an automatic packages update, apache packages with "2.4.52-1ubuntu4.10" new version has been installed and it seems this new version has broken sympa web interface that returned an error like this:

Bad Request
Your browser sent a request that this server could not understand.
Apache/2.4.52 (Ubuntu) Server at huapacha.upc.edu Port 443

Version

sympa 6.2.66~dfsg-2
apache 2.4.52-1ubuntu4.10
ubuntu 22.04

Installation method

https://www.sympa.community/manual/install/install-sympa-distribution-debian.html
https://www.sympa.community/manual/install/configure-http-server-systemdsocket.html

Expected behavior

Sympa web interface would have to work after ubuntu apache packages upgrading

Actual behavior

Sympa web interface URL
https://server/wws

returns an 400 error like this:

Bad Request
Your browser sent a request that this server could not understand.
Apache/2.4.52 (Ubuntu) Server at huapacha.upc.edu Port 443

Steps to reproduce

1. Update apache packages to "2.4.52-1ubuntu4.10" (last version right now):
   apt-get install apache2 apache2-bin apache2-data apache2-utils

Additional information

No issues after automatic upgrades to these ubuntu apache versions:

2.4.52-1ubuntu4.4
2.4.52-1ubuntu4.6
2.4.52-1ubuntu4.7
2.4.52-1ubuntu4.9

Apache access.log shows this:

10.84.127.35 - - [10/Jul/2024:10:32:51 +0200] "GET /wws HTTP/1.1" 400 7860 "-" "centreon::plugins::backend::http::useragent"
10.84.127.35 - - [10/Jul/2024:10:37:51 +0200] "GET /wws HTTP/1.1" 400 7860 "-" "centreon::plugins::backend::http::useragent"

Apache error.log shows errors like this:

[Wed Jul 10 10:32:51.700126 2024] [proxy_fcgi:error] [pid 52983] [client 10.84.127.35:55804] AH01059: error parsing URL //: Invalid host/port
[Wed Jul 10 10:37:51.686241 2024] [proxy_fcgi:error] [pid 53056] [client 10.84.127.35:60354] AH01059: error parsing URL //: Invalid host/port

• File /etc/apache2/conf-enabled/sympa.conf

#
# Apache >> 2.4 configuration for Sympa
#

<IfModule mod_proxy_fcgi.c>
    Alias /static-sympa /usr/share/sympa/static_content
    <Directory /usr/share/sympa/static_content>
        Require all granted
    </Directory>

    Alias /css-sympa /var/lib/sympa/css
    <Directory /var/lib/sympa/css>
        Require all granted
    </Directory>

    Alias /pictures-sympa /var/lib/sympa/pictures
    <Directory /var/lib/sympa/pictures>
        Require all granted
    </Directory>

    <Location /wws>
       SetHandler "proxy:unix:/run/sympa/wwsympa.socket|fcgi://"
       Require all granted
    </Location>
</IfModule>

[ikedas]

Check this discussion:
https://lists.sympa.community/msg/en/2024-07/gEBkopK6LrG5orgF9JhpoQ

[albsol]

Thank you very much, this discussion gave the solution, modifying these files
/etc/apache2/conf-available/sympa.conf
/etc/apache2/conf-available/sympa-soap.conf

and adding localhost in this line:
SetHandler "proxy:unix:/run/sympa/wwsympa.socket|fcgi://localhost"

after reloading apache sympa web interface is working again.

[jmvjmv57]

Thanks, this solution works for me too. Apache 2.4.52-1ubuntu4.11, Sympa 6.2.66~dfsg-2 on Ubuntu 22.04.4 LTS

[sebix]

The same happened on Debian 12 bookworm. The workaround works too.

[racke]

Fixed in Debian package 6.2.72~dfsg-1.

[ikedas]

I saw Ubuntu oracular also followed.

[paulmenzel]

Thank you. This saved me some time. /var/log/apache2/error.log contained:

AH01059: error parsing URL //: Invalid host/port

Upgrade happened back in July. :/

/var/log/dpkg.log.2.gz:2024-07-13 06:01:02 upgrade apache2-bin:amd64 2.4.59-1~deb12u1 2.4.61-1~deb12u1