Package: masqmail
Version: 0.2.21-6
Severity: important
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After upgrading masqmail 0.2.21-5 to 0.2.21-6, masqmail segfaults when trying to
deliver queued mails:
Jun 13 19:33:05 manetheren masqmail[16167]: Starting queue run.
Jun 13 19:33:05 manetheren kernel: [ 1983.224568] masqmail[16167]: segfault at
0 ip 805706d sp ff965910 error 4 in masqmail[8048000+1c000]
Jun 13 19:33:05 manetheren masqmail[16166]: process with pid 16167 got signal:
11
Reverting to 0.2.21-5 resolves the problem, as well as rebuilding 0.2.21-6 with
the 0.2.21-5 version of file online.c. When looking at the changes between -5
and -6 for this file, it seems that masqmail tries to determine the length of an
uninitialized string (l.39):
25 static
26 gchar *detect_online_pipe(const gchar *pipe)
27 {
28 pid_t pid;
29 void (*old_signal)(int);
30 int status;
31 FILE *in;
32 gchar *name = NULL;
33 old_signal = signal(SIGCHLD, SIG_DFL);
34 in = peopen(pipe, "r", environ, &pid);
35 if(in != NULL){
36 gchar output[256];
37 if(fgets(output, 255, in)){
38 g_strchomp(g_strchug(output));
39 if (strlen(name) == 0) { /* <- !!! SUSPICIOUS !!! */
40 logwrite(LOG_ALERT, "only whitespace connection name\n");
41 name = NULL;
42 } else {
43 name = g_strdup(output);
44 }
45 } else {
46 logwrite(LOG_ALERT, "nothing read from pipe %s\n", pipe);
47 name = NULL;
48 }
Classifying this as important, as I'm unable to send any mails with the current
version, and I assume this applies to all other users with connection method
pipe, too.
- -- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'unstable'), (500, 'stable'), (1,
'experimental')
Architecture: i386 (x86_64)
Kernel: Linux 2.6.26-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages masqmail depends on:
ii debconf [debconf-2.0] 1.5.26 Debian configuration management sy
ii libc6 2.9-12 GNU C Library: Shared libraries
ii libglib2.0-0 2.20.1-2 The GLib library of C routines
ii libident 0.22-3 simple RFC1413 client library - ru
ii liblockfile1 1.08-3 NFS-safe locking library, includes
ii netbase 4.34 Basic TCP/IP networking system
ii update-inetd 4.31 inetd configuration file updater
masqmail recommends no packages.
Versions of packages masqmail suggests:
ii emacs22 [mail-reader] 22.3+1-1 The GNU Emacs editor
ii logrotate 3.7.7-3 Log rotation utility
ii nmh [mail-reader] 1.3-1 A set of electronic mail handling
- -- debconf information:
* masqmail/ipup_fetch: false
* masqmail/mda: sudo -u ah /usr/bin/maildrop
* masqmail/online_file: /var/run/masqmail-route
* masqmail/mbox_default: mbox
* masqmail/init_smtp_daemon: false
* masqmail/ipup_runqueue: true
* masqmail/online_detect: pipe
* masqmail/local_hosts: localhost;manetheren
* masqmail/queue_daemon_ival: -q10m
* masqmail/host_name: manetheren
* masqmail/alias_local_caseless: false
* masqmail/manage_config_with_debconf: true
* masqmail/use_syslog: true
* masqmail/listen_addresses: localhost:25
* masqmail/init_fetch_daemon: false
masqmail/move_existing_nondebconf_config: true
* masqmail/ifup_ifaces: eth1
* masqmail/online_pipe: /local/bin/masqmail_online_pipe
* masqmail/init_queue_daemon: true
masqmail/fetch_daemon_ival: -go5m
* masqmail/local_nets:
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