reassign 572266 libpam-ssh
severity 572266 grave
affects 572266 dovecot-common
thanks

Reason for grave: breaks unrelated software.
(Not sure if the 'affects' syntax is right above, feel free to re-do
that. It makes sense to keep the bug listed as "affects" to avoid
resubmissions and help other dovecot users to find the workaround.)

---

Hi Timo,
Thank you - I should've come up with the gdb approach myself.
As expected it is the fault of a PAM plugin, namely libpam-ssh:

Program received signal SIGSEGV, Segmentation fault.
0x08074f4e in buffer_free ()
(gdb) bt
#0  0x08074f4e in buffer_free ()
#1  0xb6f1fb16 in ?? () from /lib/security/pam_ssh.so
#2  0xb6f20513 in key_load_private () from /lib/security/pam_ssh.so
#3  0xb6f234d5 in ?? () from /lib/security/pam_ssh.so
#4  0xb6f237d8 in ?? () from /lib/security/pam_ssh.so
#5  0xb6f23dbc in pam_sm_authenticate () from /lib/security/pam_ssh.so
#6  0xb780558d in ?? () from /lib/libpam.so.0
#7  0xb7804dcd in pam_authenticate () from /lib/libpam.so.0
#8  0x08066224 in ?? ()
#9  0x0805bd43 in ?? ()
#10 0x0807af06 in io_loop_handler_run ()
#11 0x0807a380 in io_loop_run ()
#12 0x0805ee5c in main ()

Uninstalling libpam-ssh helped and made dovecot usable again.

Thanks,
Erich




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