[Dovecot] Managesieve segfault with dovecot 2.1.8
Daniel Parthey
daniel.parthey at informatik.tu-chemnitz.de
Fri Sep 7 02:56:37 EEST 2012
Hi,
I'm getting segfaults and unexpected disconnects from managesieve server,
when the Thunderbird SIEVE extension tries to validate SIEVE scripts
agains Pidgeonhole in Dovecot 2.1.8.
The extension says:
"Server terminated unexpectedly the connection, click on reconnect to try again."
It can be reproduced by simply calling CHECKSCRIPT followed by a string:
mail01:~# telnet 127.0.0.1 19200
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
"IMPLEMENTATION" "Sieve"
"SIEVE" "fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave"
"NOTIFY" "mailto"
"SASL" "PLAIN"
"VERSION" "1.0"
OK "Mailbox"
AUTHENTICATE "PLAIN" "AGRwYXJ0aGV5QGV4YW1wbGUub3JnAGRwYXJ0aGV5"
OK "Logged in."
CHECKSCRIPT {6+}
abcdef
Connection closed by foreign host.
The server interrupts the connection and the logs show the following:
# dovecot.log
Sep 7 01:40:46 dovecot: mailbox: mail: managesieve(dparthey at example.org): Fatal: master: service(managesieve): child 31356 killed with signal 11 (core dumped)
# kern.log
Sep 7 01:40:46 kernel: [1417105.954609] managesieve[31356]: segfault at 0 ip 00007f1c415c4876 sp 00007fffb3731f88 error 4 in libc-2.11.1.so[7f1c41543000+17a000]
Here is the backtrace:
mail01:~# gdb /usr/lib/dovecot/managesieve /var/tmp/core.managesieve.31356
Core was generated by `dovecot-mailbox/managesieve'.
Program terminated with signal 11, Segmentation fault.
#0 0x00007f1c415c4876 in ?? () from /lib/libc.so.6
(gdb) bt full
#0 0x00007f1c415c4876 in ?? () from /lib/libc.so.6
No symbol table info available.
#1 0x000000000040b1c3 in sieve_storage_save_will_activate (ctx=0x257f1a0) at sieve-storage-save.c:328
_data_stack_cur_id = 4
scriptname = 0x25400ae "default.sieve"
ret = <value optimized out>
#2 0x00000000004065b0 in cmd_putscript_finish_parsing (cmd=0x2575cb8) at cmd-putscript.c:206
ehandler = <value optimized out>
cpflags = <value optimized out>
sbin = <value optimized out>
errors = <value optimized out>
_data_stack_cur_id = 0
script = <value optimized out>
client = 0x2575c30
ctx = 0x2578180
args = 0x254bc68
ret = <value optimized out>
#3 0x0000000000406838 in cmd_putscript_continue_script (cmd=0x2575cb8) at cmd-putscript.c:423
all_written = <value optimized out>
client = 0x2575c30
ctx = 0x2578180
size = 39279968
#4 0x0000000000406caf in client_input_putscript (context=0x2575c30) at cmd-putscript.c:84
cmd = 0x2575cb8
__FUNCTION__ = "client_input_putscript"
#5 0x00007f1c41d1d3e6 in io_loop_call_io (io=0x2575fd0) at ioloop.c:379
ioloop = 0x2548680
t_id = 2
#6 0x00007f1c41d1e46f in io_loop_handler_run (ioloop=<value optimized out>) at ioloop-epoll.c:213
ctx = 0x25489f0
event = 0x2548a60
list = 0x2576020
io = 0x0
tv = {tv_sec = 18, tv_usec = 988469}
msecs = <value optimized out>
ret = <value optimized out>
i = 0
call = false
#7 0x00007f1c41d1d388 in io_loop_run (ioloop=0x2548680) at ioloop.c:398
No locals.
#8 0x00007f1c41d09653 in master_service_run (service=0x2548530, callback=0x25400ae) at master-service.c:543
No locals.
#9 0x00000000004096ce in main (argc=1, argv=0x2548370) at main.c:308
set_roots = {0x610d60, 0x0}
login_set = {auth_socket_path = 0x2540088 "/var/run/dovecot/auth-master", postlogin_socket_path = 0x0, postlogin_timeout_secs = 60, callback = 0x409810 <login_client_connected>,
failure_callback = 0x409290 <login_client_failed>}
service_flags = <value optimized out>
storage_service_flags = MAIL_STORAGE_SERVICE_FLAG_DISALLOW_ROOT
username = 0x0
c = <value optimized out>
Regards
Daniel
--
https://plus.google.com/103021802792276734820
-------------- next part --------------
# 2.1.8: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-42-server x86_64 Ubuntu 10.04.4 LTS
auth_cache_negative_ttl = 0
auth_cache_size = 10 M
auth_cache_ttl = 1 mins
auth_verbose = yes
auth_verbose_passwords = sha1
deliver_log_format = mailbox: deliver: msgid=%m from=%f: %$
dict {
quota = mysql:/etc/dovecot/conf.d/dovecot-dict-sql.conf.ext
}
disable_plaintext_auth = no
doveadm_password = xxx
imapc_features = rfc822.size
imapc_host = local-mailbox
imapc_port = 18143
instance_name = dovecot-mailbox
lda_mailbox_autocreate = yes
lda_mailbox_autosubscribe = yes
login_greeting = Mailbox
login_log_format = mailbox: login: %$: %s
login_trusted_networks = 10.129.3.0/24
mail_debug = yes
mail_fsync = always
mail_gid = vmail
mail_home = /mail/dovecot/%d/%n
mail_location = mdbox:~/mail
mail_log_prefix = "mailbox: mail: %s(%u): "
mail_plugins = quota stats
mail_privileged_group = vmail
mail_uid = vmail
managesieve_implementation_string = Sieve
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave
mdbox_rotate_interval = 1 weeks
mdbox_rotate_size = 50 M
mmap_disable = yes
passdb {
args = /etc/dovecot/conf.d/dovecot-sql.conf.ext
driver = sql
}
plugin {
quota = dict:User quota::proxy::quota
quota_rule = *:storage=10G
quota_rule2 = Trash:storage=+100M
quota_warning = storage=95%% quota-warning 95 %u
quota_warning2 = storage=80%% quota-warning 80 %u
sieve = ~/.dovecot.sieve
sieve_dir = ~/sieve
stats_refresh = 30 secs
stats_track_cmds = yes
}
protocols = imap pop3 lmtp sieve
service auth {
unix_listener auth-userdb {
group = dovecot
mode = 0660
user = dovecot
}
}
service dict {
unix_listener dict {
group = vmail
mode = 0660
}
}
service doveadm {
inet_listener doveadm-server {
port = 19000
}
}
service imap-login {
inet_listener imap {
port = 19143
}
}
service imap-postlogin {
executable = script-login /usr/local/bin/dovecot-postlogin
user = $default_internal_user
}
service imap {
executable = imap imap-postlogin
}
service lmtp {
inet_listener lmtp {
address = *
port = 19024
}
}
service managesieve-login {
inet_listener sieve {
port = 19200
}
}
service pop3-login {
inet_listener pop3 {
port = 19110
}
}
service pop3-postlogin {
executable = script-login /usr/local/bin/dovecot-postlogin
user = $default_internal_user
}
service pop3 {
executable = pop3 pop3-postlogin
}
service quota-warning {
executable = script /usr/local/bin/quota-warning
extra_groups = dovecot
unix_listener quota-warning {
user = vmail
}
user = vmail
}
service stats {
fifo_listener stats-mail {
mode = 0600
user = vmail
}
}
ssl = no
userdb {
driver = prefetch
}
userdb {
args = /etc/dovecot/conf.d/dovecot-sql.conf.ext
driver = sql
}
verbose_proctitle = yes
protocol imap {
imap_client_workarounds = delay-newmail tb-extra-mailbox-sep
mail_plugins = quota stats imap_quota imap_stats
}
protocol lmtp {
mail_plugins = quota stats sieve
}
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