[Freeswitch-users] Buffer Overflow Issue

[Anthony Minessale]

yes, your version ldns has a bug where it uses select for sockets and you
have more than 1024 sockets causing a buffer overflow.
You need to get on a version of ldns that does not have this bug.


On Mon, Nov 20, 2017 at 1:37 PM, Wesley Akio <wesleyakio at tuntscorp.com>
wrote:

> Hey guys, have any of you ever seen this?
>
> If not I'll file a Jira.
>
> Nov 17 14:03:33 fsc2c9 freeswitch: *** buffer overflow detected ***:
> /usr/bin/freeswitch terminated
> Nov 17 14:03:33 fsc2c9 freeswitch: ======= Backtrace: =========
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libc.so.6(__
> fortify_fail+0x37)[0x7fa91f207d87]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libc.so.6(+
> 0x10df40)[0x7fa91f205f40]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libc.so.6(+
> 0x10fcf7)[0x7fa91f207cf7]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libldns.so.1(+
> 0x2f095)[0x7fa9198cf095]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libldns.so.1(ldns_
> udp_send+0x4f)[0x7fa9198cf57f]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libldns.so.1(ldns_
> send_buffer+0x29a)[0x7fa9198cfd1a]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libldns.so.1(ldns_
> send+0x89)[0x7fa9198d0029]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libldns.so.1(ldns_
> resolver_send_pkt+0x3d)[0x7fa9198d4e9d]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libldns.so.1(ldns_
> resolver_send+0x132)[0x7fa9198d52c2]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libldns.so.1(ldns_
> resolver_query+0xc0)[0x7fa9198d5400]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/freeswitch/mod/mod_
> enum.so(+0x33d0)[0x7fa919afc3d0]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/freeswitch/mod/mod_
> enum.so(+0x361a)[0x7fa919afc61a]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/freeswitch/mod/mod_
> enum.so(+0x3817)[0x7fa919afc817]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libfreeswitch.so.1(
> switch_core_session_run+0x242f)[0x7fa9218d5dbf]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libfreeswitch.so.1(
> +0x8933e)[0x7fa9218ce33e]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libfreeswitch.so.1(
> +0x84d83)[0x7fa9218c9d83]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libfreeswitch.so.1(
> +0x34b7c0)[0x7fa921b907c0]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libpthread.so.0(+
> 0x7e25)[0x7fa91fb95e25]
> Nov 17 14:03:33 fsc2c9 freeswitch: /usr/lib64/libc.so.6(clone+
> 0x6d)[0x7fa91f1f034d]
> --
> <http://www.tuntscorp.com/>
>   *Wesley Akio*
>
>   Travessa da Lapa 96 - Sala 24
>
>   Centro – Curitiba – 80010-190
>
>   :  +55 (41) 99950-0033
>
>   :  +1 (305) 842-7095
>
>   : wesley_akio_
>
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-- 
Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬

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