[Oisf-devel] Memory pb on Suricata git today

rmkml at free.fr rmkml at free.fr
Sat Jul 24 19:51:26 UTC 2010 

Ok Im found my "crash" sig:
alert udp any any -> any any (msg:"crash"; byte_test:4,>,2,0;
byte_jump:1,0,relative; sid:11; )
Regards
Rmkml


Selon rmkml <rmkml at free.fr>:

> thx for reply Victor,
> no problemo:
>
> ...
> [20560] 24/7/2010 -- 16:23:13 - (detect.c:302) <Error> (DetectLoadSigFile) --
> [ERRCODE: SC_ERR_INVALID_SIGNATURE(39)] - Error parsing signature "alert tcp
> $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"WEB-PHP shoutbox.php
> access"; flow:to_server,established; uricontent:"/shoutbox.php";
> reference:nessus,11668; classtype:web-application-activity; sid:2142;
> rev:1;)" from file /home/test/snort/rules/web-php.rules at line 94
> [20560] 24/7/2010 -- 16:23:14 - (detect-bytejump.c:594) <Error>
> (DetectBytejumpSetup) -- [ERRCODE: SC_ERR_INVALID_SIGNATURE(39)] - No
> preceding content or uricontent or pcre option
> *** glibc detected ***
> /home/test/oisf_suricata_ids/suricata-1.0.1pregit24jul201
> 0/src/.libs/suricata: corrupted double-linked list: 0x0a51dea8 ***
> ======= Backtrace: =========
> /lib/libc.so.6[0xa9d06d]
> ...
>
> Regards
> Rmkml
>
>
>
> On Sat, 24 Jul 2010, Victor Julien wrote:
>
> > Can you share the signature this is happening with? Privately if you
> prefer.
> >
> > Cheers,
> > Victor
> >
> > rmkml wrote:
> >> Hi Victor,
> >> Thx for your work and your time on this project!
> >>
> >> I have "downloaded" (git clone) last Suricata version,
> >> but I have a glibc error (git ead29dc6918f4524f1fae7e892d3f86dac117c0a):
> >> ...
> >> [20560] 24/7/2010 -- 16:23:14 - (detect-bytejump.c:594) <Error>
> >> (DetectBytejumpSetup) -- [ERRCODE: SC_ERR_INVALID_SIGNATURE(39)] - No
> >> preceding content or uricontent or pcre option
> >> *** glibc detected ***
> >>
> /home/test/oisf_suricata_ids/suricata-1.0.1pregit24jul2010/src/.libs/suricata:
> >> corrupted double-linked list: 0x0a51dea8 ***
> >> ======= Backtrace: =========
> >> /lib/libc.so.6[0xa9d06d]
> >> /lib/libc.so.6[0xa9eb2b]
> >> /lib/libc.so.6(cfree+0x90)[0xaa2430]
> >>
>
/home/test/oisf_suricata_ids/suricata-1.0.1pregit24jul2010/src/.libs/suricata[0x807b0dd]
> >>
> >>
>
/home/test/oisf_suricata_ids/suricata-1.0.1pregit24jul2010/src/.libs/suricata[0x807c04a]
> >>
> >>
>
/home/test/oisf_suricata_ids/suricata-1.0.1pregit24jul2010/src/.libs/suricata[0x807c1fb]
> >>
> >>
>
/home/test/oisf_suricata_ids/suricata-1.0.1pregit24jul2010/src/.libs/suricata[0x806586e]
> >>
> >>
>
/home/test/oisf_suricata_ids/suricata-1.0.1pregit24jul2010/src/.libs/suricata[0x8065d4b]
> >>
> >>
>
/home/test/oisf_suricata_ids/suricata-1.0.1pregit24jul2010/src/.libs/suricata[0x804bc70]
> >>
> >> /lib/libc.so.6(__libc_start_main+0xe0)[0xa4cf70]
> >>
>
/home/test/oisf_suricata_ids/suricata-1.0.1pregit24jul2010/src/.libs/suricata[0x804aa01]
> >>
> >> ======= Memory map: ========
> >> 0072c000-0073e000 r-xp 00000000 08:02 3700508    /lib/libz.so.1.2.3
> >> 0073e000-0073f000 rw-p 00011000 08:02 3700508    /lib/libz.so.1.2.3
> >> 00a18000-00a33000 r-xp 00000000 08:02 11817698   /lib/ld-2.6.so
> >> 00a33000-00a34000 r--p 0001a000 08:02 11817698   /lib/ld-2.6.so
> >> 00a34000-00a35000 rw-p 0001b000 08:02 11817698   /lib/ld-2.6.so
> >> 00a37000-00b85000 r-xp 00000000 08:02 11817699   /lib/libc-2.6.so
> >> 00b85000-00b87000 r--p 0014e000 08:02 11817699   /lib/libc-2.6.so
> >> 00b87000-00b88000 rw-p 00150000 08:02 11817699   /lib/libc-2.6.so
> >> 00b88000-00b8b000 rw-p 00000000 00:00 0
> >> 00bbf000-00bd3000 r-xp 00000000 08:02 5434178    /lib/libpthread-2.6.so
> >> 00bd3000-00bd4000 r--p 00013000 08:02 5434178    /lib/libpthread-2.6.so
> >> 00bd4000-00bd5000 rw-p 00014000 08:02 5434178    /lib/libpthread-2.6.so
> >> 00bd5000-00bd7000 rw-p 00000000 00:00 0
> >> 00bee000-00c17000 r-xp 00000000 08:02 2078837    /usr/lib/libpcap.so.0.9.7
> >> 00c17000-00c19000 rw-p 00028000 08:02 2078837    /usr/lib/libpcap.so.0.9.7
> >> 00c58000-00c7f000 r-xp 00000000 08:02 5434342    /lib/libpcre.so.0.0.1
> >> 00c7f000-00c80000 rw-p 00026000 08:02 5434342    /lib/libpcre.so.0.0.1
> >> 05db4000-05dbf000 r-xp 00000000 08:02 5434249
> >> /lib/libgcc_s-4.1.2-20070925.so.1
> >> 05dbf000-05dc0000 rw-p 0000a000 08:02 5434249
> >> /lib/libgcc_s-4.1.2-20070925.so.1
> >> 08048000-08100000 r-xp 00000000 08:02 1244073
> >>
> /home/test/oisf_suricata_ids/suricata-1.0.1pregit24jul2010/src/.libs/suricata
> >>
> >> 08100000-08101000 rw-p 000b8000 08:02 1244073
> >>
> /home/test/oisf_suricata_ids/suricata-1.0.1pregit24jul2010/src/.libs/suricata
> >>
> >> 08101000-0a53d000 rw-p 00000000 00:00 0          [heap]
> >> b7400000-b7421000 rw-p 00000000 00:00 0
> >> b7421000-b7500000 ---p 00000000 00:00 0
> >> b7594000-b771c000 rw-p 00000000 00:00 0
> >> b771c000-b7737000 r-xp 00000000 08:02 11261710
> >> /home/test/oisf_suricata_ids/yaml-0.1.3/src/.libs/libyaml-0.so.2.0.1
> >> b7737000-b7738000 rw-p 0001a000 08:02 11261710
> >> /home/test/oisf_suricata_ids/yaml-0.1.3/src/.libs/libyaml-0.so.2.0.1
> >> b7748000-b7749000 rw-p 00000000 00:00 0
> >> b7749000-b7758000 r-xp 00000000 08:02 654980
> >>
>
/home/test/oisf_suricata_ids/suricata-1.0.1pregit24jul2010/libhtp/htp/.libs/libhtp-0.2.so.1.0.2
> >>
> >> b7758000-b7759000 rw-p 0000e000 08:02 654980
> >>
>
/home/test/oisf_suricata_ids/suricata-1.0.1pregit24jul2010/libhtp/htp/.libs/libhtp-0.2.so.1.0.2
> >>
> >> b7759000-b775a000 rw-p 00000000 00:00 0
> >> b775a000-b775b000 r-xp 00000000 00:00 0          [vdso]
> >> bf96c000-bf98d000 rw-p 00000000 00:00 0          [stack]
> >> Abandon
> >>
> >> Regards
> >> Rmkml
> >>
> >>
> >>
> >> On Sat, 24 Jul 2010, Victor Julien wrote:
> >>
> >>> rmkml at free.fr wrote:
> >>>> I have new:
> >>>> On git 21 jul, mem usage pb appear, but I have a small (revert)
> >>>> change "resolv"
> >>>> my pb, Move (back) this Line on if loop /* content */:
> >>>>  PatternMatchPreparePopulateMpm(de_ctx, sh);
> >>>> #line 1081 in src/detect-engine-mpm.c
> >>>
> >>> Thanks Rmkml. At this point I don't think there is anything wrong in the
> >>> code there. The changes were done to fix some accuracy issues we were
> >>> seeing.
> >>>
> >>> I did cleanup the code a bit in the latest git master. I don't expect
> >>> anything to change, but maybe you can try anyway :)
> >>>
> >>> Cheers,
> >>> Victor
> >>>
> >>>
> >>> --
> >>> ---------------------------------------------
> >>> Victor Julien
> >>> http://www.inliniac.net/
> >>> PGP: http://www.inliniac.net/victorjulien.asc
> >>> ---------------------------------------------
> >>>
> >>>
> >
> >
> > --
> > ---------------------------------------------
> > Victor Julien
> > http://www.inliniac.net/
> > PGP: http://www.inliniac.net/victorjulien.asc
> > ---------------------------------------------
> >
> >
>
>

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