On 10/14/20 8:02 AM, Carsten Aulbert wrote: > Package: sympa > Version: 6.2.16~dfsg-3+deb9u3 > Severity: important > > Dear Maintainer(s), > > since applying the security update from 6.2.16~dfsg-3+deb9u2 to > 6.2.16~dfsg-3+deb9u3 I found some troubles with the session handling, > i.e. the web server reports > > 2020/10/13 11:59:18 [error] 2123#2123: *3525 FastCGI sent in stderr: > "Use of uninitialized value in string ne at /usr/share/sympa/lib/Sympa/Se > ssion.pm line 406. > Use of uninitialized value $remote_addr in string ne at > /usr/share/sympa/lib/Sympa/Session.pm line 406" while reading upstream, > client: 192.16 > 8.100.2, server: lists.welcomes-you.com, request: "POST /sympa > HTTP/1.0", upstream: "fastcgi://unix:/run/fcgiwrap.socket:", host: > "FQDN", referrer: "https://FQDN/sympa"; > > My configuration may be a bit "nasty" and may contribute here: > > The external https access to sympa is TLS terminated by nginx acting as > a reverse proxy which then sends the requests via a virtual bridge to > the container where sympa is running. > > After comparing the changes between u2 and u3 I fear this change here > > char *myenvp[] = { "IFS= \t\n", "PATH=/bin:/usr/bin", NULL }; > [..] > - return execve(WWSYMPA,argv,envp); > + return execve(WWSYMPA, argv, myenvp); > > to the fcgi wrapper may cause the nginx set variable $ENV{'REMOTE_ADDR'} > not to be set and thus session handling will not work anymore. > > Cheers > > Carsten
Comment from upstream: Anyways the patch assumes that CGI mode has been deprecated. It is incompatible with CGI mode supported by earlier version of Sympa. https://github.com/sympa-community/sympa/issues/1020#issuecomment-708223858 Regards Racke > > -- System Information: > Debian Release: 9.13 > APT prefers oldstable > APT policy: (500, 'oldstable') > Architecture: amd64 (x86_64) > > Kernel: Linux 4.9.0-12-amd64 (SMP w/8 CPU cores) > Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8 > (charmap=UTF-8) > Shell: /bin/sh linked to /bin/dash > Init: systemd (via /run/systemd/system) > > Versions of packages sympa depends on: > ii adduser 3.115 > ii ca-certificates 20200601~deb9u1 > ii dbconfig-common 2.0.8 > ii debconf [debconf-2.0] 1.5.61 > ii fonts-font-awesome 4.7.0~dfsg-1 > ii init-system-helpers 1.48 > ii libarchive-zip-perl 1.59-1+deb9u1 > ii libc6 2.24-11+deb9u4 > ii libcgi-fast-perl 1:2.12-1 > ii libcgi-pm-perl 4.35-1 > ii libclass-singleton-perl 1.5-1 > ii libcrypt-openssl-x509-perl 1.8.7-3 > ii libcrypt-smime-perl 0.19-2 > ii libdatetime-format-mail-perl 0.4030-1 > ii libdbd-csv-perl 0.4900-1 > ii libdbd-mysql-perl 4.041-2 > ii libdbd-pg-perl 3.5.3-1+b2 > ii libdbd-sqlite3-perl 1.54-1 > ii libdbi-perl 1.636-1+deb9u1 > ii libfcgi-perl 0.78-2 > ii libfile-copy-recursive-perl 0.38-1 > ii libfile-nfslock-perl 1.27-1 > ii libhtml-format-perl 2.12-1 > ii libhtml-stripscripts-parser-perl 1.03-1 > ii libhtml-tree-perl 5.03-2 > ii libintl-perl 1.26-2 > ii libio-stringy-perl 2.111-2 > ii libjs-jquery 3.1.1-2+deb9u1 > ii libjs-jquery-migrate-1 1.4.1-1 > ii libjs-jquery-placeholder 2.3.1-2 > ii libjs-jquery-ui 1.12.1+dfsg-4 > ii libjs-modernizr 2.6.2+ds1-1 > ii libjs-twitter-bootstrap 2.0.2+dfsg-10 > ii libmail-dkim-perl 0.40-1 > ii libmailtools-perl 2.18-1 > ii libmime-charset-perl 1.012-2 > ii libmime-encwords-perl 1.014.3-2 > ii libmime-lite-html-perl 1.24-2 > ii libmime-tools-perl 5.508-1 > ii libmsgcat-perl 1.03-6+b3 > ii libnet-cidr-perl 0.18-1 > ii libnet-dns-perl 1.07-1 > ii libnet-ldap-perl 1:0.6500+dfsg-1 > ii libnet-netmask-perl 1.9022-1 > ii libregexp-common-perl 2016060801-1 > ii libsoap-lite-perl 1.20-1 > ii libtemplate-perl 2.24-1.2+b3 > ii libterm-progressbar-perl 2.18-1 > ii libunicode-linebreak-perl 0.0.20160702-1+b1 > ii libxml-libxml-perl 2.0128+dfsg-1+deb9u1 > ii lsb-base 9.20161125 > ii mhonarc 2.6.19-2 > ii perl 5.24.1-3+deb9u7 > ii postfix [mail-transport-agent] 3.1.15-0+deb9u1 > ii rsyslog [system-log-daemon] 8.24.0-1 > ii sqlite3 3.16.2-5+deb9u2 > > Versions of packages sympa recommends: > pn apache2-suexec <none> > pn default-mysql-server | postgresql <none> > pn doc-base <none> > pn libapache2-mod-fcgid <none> > pn libcrypt-ciphersaber-perl <none> > ii libio-socket-ssl-perl 2.044-1 > ii locales 2.24-11+deb9u4 > ii logrotate 3.11.0-0.1 > > Versions of packages sympa suggests: > pn libauthcas-perl <none> > pn libdbd-odbc-perl <none> > pn libdbd-oracle-perl <none> > ii nginx-light [httpd-cgi] 1.10.3-1+deb9u5 > > -- debconf information excluded > -- Ecommerce and Linux consulting + Perl and web application programming. Debian and Sympa administration. Provisioning with Ansible.
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