Server crash after upgrade to 2.4.14

I am running urbackup on a Debian server since a few years.
Debian is 11.2, with all updates.
Two weeks ago, the urbackup-server package was upgraded from 2.4.13 to 2.4.14, together with libcrypto++8
Since then, urbackup does not start any more (seg fault).
All logs are empty.

My question is to know if the problem is in urbackup or in lybcrypto?

Regards, Jacques-D.

root@rohan:~# cat /etc/apt/sources.list.d/urbackup.list
deb Index of /repositories/home:/uroni/Debian_11 /

root@rohan:~# cat /var/log/apt/history.log.1

Start-Date: 2022-01-31 18:36:11
Commandline: apt full-upgrade
Install: libcrypto++8:amd64 (8.4.0-1, automatic)
Upgrade: urbackup-server:amd64 (,
End-Date: 2022-01-31 18:36:44

root@rohan:~# gdb --args /usr/bin/urbackupsrv run -v debug --config /etc/default/urbackupsrv
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Reading symbols from /usr/bin/urbackupsrv…
Reading symbols from /usr/lib/debug/.build-id/7e/fffb9e7980db7d897985ff5c0d4352026cb77b.debug…
(gdb) run
Starting program: /usr/bin/urbackupsrv run -v debug --config /etc/default/urbackupsrv
[Thread debugging using libthread_db enabled]
Using host libthread_db library “/lib/x86_64-linux-gnu/”.
[New Thread 0x7ffff66f8700 (LWP 11468)]
[New Thread 0x7ffff5ef7700 (LWP 11469)]

Thread 1 “urbackupsrv” received signal SIGSEGV, Segmentation fault.
0x00007ffff7d15fe0 in CryptoPP::IteratedHashBase<unsigned int, CryptoPP::HashTransformation>::TruncatedFinal(unsigned char*, unsigned long) () from /usr/lib/x86_64-linux-gnu/
(gdb) bt
#0 0x00007ffff7d15fe0 in CryptoPP::IteratedHashBase<unsigned int, CryptoPP::HashTransformation>::TruncatedFinal(unsigned char*, unsigned long) () from /usr/lib/x86_64-linux-gnu/
#1 0x00007ffff7d61536 in CryptoPP::RandomPool::IncorporateEntropy(unsigned char const*, unsigned long) ()
from /usr/lib/x86_64-linux-gnu/
#2 0x00007ffff7d4f753 in CryptoPP::AutoSeededRandomPool::Reseed(bool, unsigned int) ()
from /usr/lib/x86_64-linux-gnu/
#3 0x0000555555a2e2cd in CryptoPP::AutoSeededRandomPool::AutoSeededRandomPool (seedSize=32, blocking=false, this=0x7fffffffb800)
at /usr/include/cryptopp/osrng.h:171
#4 CryptoFactory::signData (this=this@entry=0x555555baa740,
pubkey=“0\202\001\203\002\001\000\060\202\001@\006\a*\206H\316=\002\001\060\202\001\063\002\001\001\060\035\006\a*\206H\316=\001\002\060\022\002\002\001\231\006\t*\206H\316=\001\002\003\002\002\001W0l\004\064”, ‘\000’ <repeats 52 times>, “\004\064”, ‘\000’ <repeats 51 times>, “\001\004i\004\000`\360_e\217I\301\255:\261\211\017q\204!\016\375\t\207\343\a\310L’\254”, <incomplete sequence \371>…, data=“test”, signature="") at cryptoplugin/CryptoFactory.cpp:237
#5 0x0000555555788f3c in LoadActions_urbackupserver (pServer=) at urbackupserver/dllmain.cpp:567
#6 0x000055555560934e in CServer::LoadStaticPlugins (this=this@entry=0x555555bd8c50) at Server.cpp:2246
#7 0x0000555555625658 in main_fkt (argc=, argv=0x555555bd7b70) at main.cpp:554
#8 0x00005555556284e1 in main_fkt_catch (argc=, argv=) at main.cpp:130
#9 0x00005555559826ac in run_real_main (args=std::vector of length 25, capacity 25 = {…})
at urbackupserver/cmdline_preprocessor.cpp:98
#10 0x000055555598b495 in action_run (args=std::vector of length 4, capacity 5 = {…})
at urbackupserver/cmdline_preprocessor.cpp:531
#11 0x00005555555f47f1 in main (argc=, argv=0x7fffffffea68) at urbackupserver/cmdline_preprocessor.cpp:1270
A debugging session is active.

Inferior 1 [process 11464] will be killed.

Quit anyway? (y or n) y

Rolling back to urbackup-server_2.4.13_amd64.deb is a workaround.

Could you try 2.4.15 ? I forgot to update OpenSUSE with that. Sry.

2.4.15 is solving the problem.
Thanks a lot!