Bug#839880: proftpd-basic: proftpd server instance crashed with signal 11

[Franklin Weng]

Package: proftpd-basic
Version: 1.3.5-1.1+deb8u1
Severity: grave
Justification: renders package unusable

proftpd started successfully in my jessie system.  However after some day
(it may be after a system-wide upgrade) the client failed to login.

The client part shows:

Connected to goodhorse.idv.tw.
220 ProFTPD 1.3.5 Server (Debian) [::ffff:218.161.78.26]
Name (goodhorse.idv.tw:franklin): ftp
331 允許匿名登入，請用您完整的信箱位址做為登入密碼
Password:
421 Service not available, remote server has closed connection
Login failed.
No control connection for command: No such file or directory
ftp>


The server part (running with `proftpd -n -d 10`) shows

2016-10-06 11:47:43,524 teabbs proftpd[18292] teabbs.goodhorse.idv.tw
(223-137-143-82.EMOME-IP.hinet.net[223.137.143.82]): retrieved group ID:
65534
2016-10-06 11:47:43,524 teabbs proftpd[18292] teabbs.goodhorse.idv.tw
(223-137-143-82.EMOME-IP.hinet.net[223.137.143.82]): retrieved group name:
nogroup
2016-10-06 11:47:43,524 teabbs proftpd[18292] teabbs.goodhorse.idv.tw
(223-137-143-82.EMOME-IP.hinet.net[223.137.143.82]): dispatching PRE_CMD
command 'PASS (hidden)' to mod_shaper
2016-10-06 11:47:43,524 teabbs proftpd[18292] teabbs.goodhorse.idv.tw
(223-137-143-82.EMOME-IP.hinet.net[223.137.143.82]): ROOT PRIVS at
mod_shaper.c:2026
2016-10-06 11:47:43,524 teabbs proftpd[18292] teabbs.goodhorse.idv.tw
(223-137-143-82.EMOME-IP.hinet.net[223.137.143.82]): ProFTPD terminating
(signal 11)
2016-10-06 11:47:43,524 teabbs proftpd[18292] teabbs.goodhorse.idv.tw
(223-137-143-82.EMOME-IP.hinet.net[223.137.143.82]): ProFTPD terminating
(signal 11)
2016-10-06 11:47:43,524 teabbs proftpd[18292] teabbs.goodhorse.idv.tw
(223-137-143-82.EMOME-IP.hinet.net[223.137.143.82]): FTP session closed.
2016-10-06 11:47:46,046 teabbs proftpd[18278] teabbs.goodhorse.idv.tw:
scrubbing scoreboard



-- System Information:
Debian Release: 8.6
  APT prefers stable
  APT policy: (501, 'stable'), (500, 'stable-updates'), (50, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 3.16.0-4-686-pae (SMP w/2 CPU cores)
Locale: LANG=zh_TW.UTF-8, LC_CTYPE=zh_TW.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages proftpd-basic depends on:
ii  adduser            3.113+nmu3
ii  debconf            1.5.56
ii  debianutils        4.4+b1
ii  libacl1            2.2.52-2
ii  libc6              2.19-18+deb8u6
ii  libcap2            1:2.24-8
ii  libmemcached11     1.0.18-4
ii  libmemcachedutil2  1.0.18-4
ii  libncurses5        5.9+20140913-1+b1
ii  libpam-runtime     1.1.8-3.1+deb8u1
ii  libpam0g           1.1.8-3.1+deb8u1+b1
ii  libpcre3           2:8.35-3.3+deb8u4
ii  libssl1.0.0        1.0.1t-1+deb8u3
ii  libtinfo5          5.9+20140913-1+b1
ii  libwrap0           7.6.q-25
ii  netbase            5.3
ii  sed                4.2.2-4+b1
ii  ucf                3.0030
ii  zlib1g             1:1.2.8.dfsg-2+b1

proftpd-basic recommends no packages.

Versions of packages proftpd-basic suggests:
pn  openbsd-inetd | inet-superserver  <none>
ii  openssl                           1.0.1t-1+deb8u3
pn  proftpd-doc                       <none>
pn  proftpd-mod-geoip                 <none>
pn  proftpd-mod-ldap                  <none>
pn  proftpd-mod-mysql                 <none>
pn  proftpd-mod-odbc                  <none>
pn  proftpd-mod-pgsql                 <none>
pn  proftpd-mod-sqlite                <none>

-- debconf information:
* shared/proftpd/inetd_or_standalone: standalone
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