Hello I tested using 3.2 and i got the same error. I couldn't get the memlog, when i enable , the system doesn't come up.
The latest update from http://www.thc.org/thc-ssl-dos/ says that "2011-OCT-24 UPDATE: SSL-DOS released. Some organizations already found out about this release a while ago and mistakenly identified it as an SSL-RENEGOTIATION BUG. This is not true. The tool can be modified to work without SSL-RENEGOTIATION by just establishing a new TCP connection for every new handshake. " So this issue could happen if we do TCP connection for every new TLS connection with renegotiation. I believe this could be fixed if we could block based on max active TLS connections, probably a similar flag for max TLS connections like "tcp_max_connections" Core was generated by `/usr/sbin/kamailio -u swrun -g sw -m 160 -f /etc/kamailio/kamailio.cfg'. Program terminated with signal 11, Segmentation fault. #0 0xb61cc2e3 in ?? () from /usr/lib/kamailio/modules/tls.so (gdb) bt #0 0xb61cc2e3 in ?? () from /usr/lib/kamailio/modules/tls.so #1 0xb65199fd in CRYPTO_lock () from /lib/libcrypto.so.1.0.0 #2 0xb658c133 in ?? () from /lib/libcrypto.so.1.0.0 #3 0xb658d240 in RAND_add () from /lib/libcrypto.so.1.0.0 #4 0xb6690d50 in ssl3_accept () from /lib/libssl.so.1.0.0 #5 0xb669bd2f in ssl3_read_bytes () from /lib/libssl.so.1.0.0 #6 0xb66989b9 in ?? () from /lib/libssl.so.1.0.0 #7 0xb66ae499 in SSL_read () from /lib/libssl.so.1.0.0 #8 0xb61e1e33 in tls_read_f () from /usr/lib/kamailio/modules/tls.so #9 0x08177036 in tcp_read_headers () #10 0x081771f6 in tcp_read_req () #11 0x08178480 in ?? () #12 0x0817af77 in tcp_receive_loop () #13 0x08173597 in tcp_init_children () #14 0x080b20bf in main_loop () #15 0x080b38c3 in main () (gdb) On Wed, Nov 23, 2011 at 10:35 AM, Daniel-Constantin Mierla < [email protected]> wrote: > Hello, > > 3.1.0 is not the right choice in 3.1 series, there were many fixes that > were added to that release series branch. The latest stable version there > is 3.1.5. Try with it (even better, try with latest version from git branch > 3.1 -- see > http://www.kamailio.org/dokuwiki/doku.php/install:kamailio-3.1.x-from-git) > > In this way we are sure it is not a bug that was fixed after the time of > releasing 3.1.0 -- config file and database is the same as for 3.1.0. > > Cheers, > Daniel > > > On 11/23/11 4:01 PM, Jijo wrote: > > Thanks I will attach the logs soon..meanwhile here is the kamailio and > openssl version > > OB151:~ # /usr/sbin/kamailio -V > version: kamailio 3.1.0 (i386/linux) 21a375 > flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS, > USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, DBG_QM_MALLOC, > USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, > USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES > ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, > MAX_URI_SIZE 1024, BUF_SIZE 65535, PKG_SIZE 15MB > poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. > id: 21a375 > compiled on 09:22:51 Nov 4 2011 with gcc 4.5.0 > > > OB151:~ # openssl version -a > OpenSSL 1.0.0 29 Mar 2010 > built on: 2011-05-31 07:52:17.000000000 +0000 > platform: linux-elf > options: bn(64,32) rc4(4x,int) des(ptr,risc1,16,long) blowfish(idx) > compiler: gcc -fPIC -DOPENSSL_PIC -DZLIB -DOPENSSL_THREADS -D_REENTRANT > -DDSO_DLFCN -DHAVE_DLFCN_H > -DL_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -Wall -fomit-frame-pointer > -fmessage-length=0 -O2 -Wall > -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables > -fasynchronous-unwind-tables -g -Wa,--noexecstack -fomit-frame-pointer > -fno-strict-aliasing > -DTERMIO -Wall -fstack-protector -DOPENSSL_BN_ASM_PART_WORDS > -DOPENSSL_IA32_SSE2 > -DOPENSSL_BN_ASM_MONT -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DMD5_ASM > -DRMD160_ASM -DAES_ASM -DWHIRLPOOL_ASM > OPENSSLDIR: "/etc/ssl" > > > On Wed, Nov 23, 2011 at 4:44 AM, Daniel-Constantin Mierla < > [email protected]> wrote: > >> Hello, >> >> (discussion kept only on sr-dev as it is very likely going to require >> mostly devel interaction). >> >> What is the version of kamailio (-V command line option). Also, send the >> verision of openssl library -- there were many bugs in various lib versions >> that had to be workarounded in the module, maybe this is a new one that has >> to be fixed. >> >> Do you get any error message in the syslog at the moment of the crash? >> >> What would be useful is to get the memory operations log, you can get it >> by setting: >> >> memdbg=1 >> memlog=1 >> >> in config file. >> >> Then repeat the test and make the log available for download somehow (if >> it is too big), from start to the moment of the crash. >> >> Cheers, >> Daniel >> >> >> On 11/22/11 11:30 PM, Jijo wrote: >> >> Hi All, >> >> Kamailio is resetting when we do TLS renegotiation dos attack using the >> tool available at http://www.thc.org/thc-ssl-dos/. >> >> Anybody looked at this issue? How we could resolve it. Any idea? >> >> The core generated for 3 pid's as below >> >> Pid 1: >> >> Core was generated by `/usr/sbin/kamailio -u swrun -g sw -m 120 -f >> /etc/kamailio/kamailio.cfg'. >> Program terminated with signal 11, Segmentation fault. >> #0 atomic_inc_int () at atomic/atomic_x86.h:225 >> (gdb) bt >> #0 atomic_inc_int () at atomic/atomic_x86.h:225 >> #1 cfg_update_local () at cfg/cfg_struct.h:228 >> #2 timer_main () at timer.c:994 >> #3 0x080b0579 in main_loop () at main.c:1632 >> #4 0x080b1be4 in main (argc=9, argv=0xbfd61e54) at main.c:2446 >> >> >> Pid 2: >> >> Core was generated by `/usr/sbin/kamailio -u swrun -g sw -m 120 -f >> /etc/kamailio/kamailio.cfg'. >> Program terminated with signal 11, Segmentation fault. >> #0 0x0819bfe8 in qm_insert_free (qm=0xaf6c5000, p=0xb05eec30, >> file=0xb6fb4140 "tls: tls_init.c", func=0xb6fb4ce0 "ser_free", line=296) >> at mem/q_malloc.c:184 >> 184 if (frag->size <= f->size) break; >> (gdb) bt >> #0 0x0819bfe8 in qm_insert_free (qm=0xaf6c5000, p=0xb05eec30, >> file=0xb6fb4140 "tls: tls_init.c", func=0xb6fb4ce0 "ser_free", line=296) >> at mem/q_malloc.c:184 >> #1 qm_free (qm=0xaf6c5000, p=0xb05eec30, file=0xb6fb4140 "tls: >> tls_init.c", func=0xb6fb4ce0 "ser_free", line=296) at mem/q_malloc.c:518 >> #2 0xb6f95404 in ser_free (ptr=0xb05eec30) at tls_init.c:296 >> #3 0xb732e9ba in CRYPTO_free (str=0xb05eec30) at mem.c:391 >> #4 0xb7330bee in int_new_ex_data (class_index=5, obj=0xbfd414f4, >> ad=0xbfd41574) at ex_data.c:440 >> #5 0xb7330443 in CRYPTO_new_ex_data (class_index=5, obj=0xbfd414f4, >> ad=0xbfd41574) at ex_data.c:575 >> #6 0xb73dfde3 in X509_STORE_CTX_init (ctx=0xbfd414f4, store=0xafd8b3d0, >> x509=0xafe08ff0, chain=0x0) at x509_vfy.c:2114 >> #7 0xb74b0f31 in ssl3_output_cert_chain (s=0xb0553a10, x=0xafe08ff0) at >> s3_both.c:349 >> #8 0xb74a4728 in ssl3_send_server_certificate (s=0xb0553a10) at >> s3_srvr.c:3034 >> #9 0xb74a5879 in ssl3_accept (s=0xb0553a10) at s3_srvr.c:353 >> #10 0xb74afa8f in ssl3_read_bytes (s=0xb0553a10, type=23, buf=0xb0ad44ec >> "", len=4095, peek=0) at s3_pkt.c:1266 >> #11 0xb74ac9c9 in ssl3_read_internal (s=0xb0553a10, buf=0xb0ad44ec, >> len=4095, peek=0) at s3_lib.c:3265 >> #12 0xb74c24a9 in SSL_read (s=0xb0553a10, buf=0xb0ad44ec, num=4095) at >> ssl_lib.c:954 >> #13 0xb6fad1c3 in tls_read_f (c=0xb0ad431c, flags=0xbfd619c4) at >> tls_server.c:1058 >> #14 0x08171c0e in tcp_read_headers (c=0xb0ad431c, read_flags=0xbfd619c4) >> at tcp_read.c:406 >> #15 0x08171db8 in tcp_read_req (con=0xb0ad431c, bytes_read=0xbfd619cc, >> read_flags=0xbfd619c4) at tcp_read.c:885 >> #16 0x08172f67 in handle_io (fm=<value optimized out>, events=1, >> idx=<value optimized out>) at tcp_read.c:1234 >> #17 0x0817583b in io_wait_loop_epoll (unix_sock=89) at io_wait.h:1092 >> #18 tcp_receive_loop (unix_sock=89) at tcp_read.c:1345 >> #19 0x0816e2e9 in tcp_init_children () at tcp_main.c:4867 >> #20 0x080affb1 in main_loop () at main.c:1646 >> #21 0x080b1be4 in main (argc=9, argv=0xbfd61e54) at main.c:2446 >> >> Pid 3: >> >> Core was generated by `/usr/sbin/kamailio -u swrun -g sw -m 120 -f >> /etc/kamailio/kamailio.cfg'. >> Program terminated with signal 11, Segmentation fault. >> #0 0xb76c9e7c in memmove () from /lib/libc.so.6 >> (gdb) bt >> #0 0xb76c9e7c in memmove () from /lib/libc.so.6 >> #1 0x081724e7 in tcp_read_req (con=0xb022c8f0, bytes_read=0xbfd619cc, >> read_flags=0xbfd619c4) at tcp_read.c:1026 >> #2 0x08172f67 in handle_io (fm=<value optimized out>, events=1, >> idx=<value optimized out>) at tcp_read.c:1234 >> #3 0x0817583b in io_wait_loop_epoll (unix_sock=93) at io_wait.h:1092 >> #4 tcp_receive_loop (unix_sock=93) at tcp_read.c:1345 >> #5 0x0816e2e9 in tcp_init_children () at tcp_main.c:4867 >> #6 0x080affb1 in main_loop () at main.c:1646 >> #7 0x080b1be4 in main (argc=9, argv=0xbfd61e54) at main.c:2446 >> >> >> >> >> _______________________________________________ >> sr-dev mailing >> [email protected]http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev >> >> >> -- >> Daniel-Constantin Mierla -- http://www.asipto.com >> Kamailio Advanced Training, Dec 5-8, Berlin: >> http://asipto.com/u/kathttp://linkedin.com/in/miconda -- >> http://twitter.com/miconda >> >> > > -- > Daniel-Constantin Mierla -- http://www.asipto.com > Kamailio Advanced Training, Dec 5-8, Berlin: > http://asipto.com/u/kathttp://linkedin.com/in/miconda -- > http://twitter.com/miconda > >
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