Bug#944915: libldap-2.4-2: Segmentation fault in "ldap_unbind_ext"

[Ryan Tandy]

Hello Lars,

On Sun, Nov 17, 2019 at 05:11:13PM +0100, Lars Kruse wrote:
>  #0  0xb77acbea in ldap_unbind_ext () at /usr/lib/i386-linux-gnu/libldap_r-2.4.so.2

Please could you install libldap-2.4-2-dbgsym and obtain the backtrace 
again:

https://wiki.debian.org/HowToGetABacktrace#Installing_the_debugging_symbols

>** (claws-mail:10224): WARNING **: 11:06:04.004: [11:06:04] LDAP error (search): -1 (Unknown error)

Is it possible your LDAP server became temporarily unreachable? I am not 
ruling out a bug in libldap but I also wonder whether claws might have 
an issue in its error handling and somehow pass an invalid argument to a 
libldap function.

Any info you can provide that leads to reproducing the error above 
(which I assume is related), or the crash itself, would be appreciated.

thanks,
Ryan