Bug 344851 – SIGSEGV in Zabbix 1.8.3 when it has use snmp and net-snmp has use ssl

• Product: Gentoo Linux
• Status: RESOLVED INVALID

[Description Stanislav Kogut 2010-11-09 22:00:10 UTC]

Bugs happens (possibly) because of conflict when linking libsnmp.so with libcrypto 
(as there is a warning while zabbix builds about it when net-snmp compiled with +ssl:
"/usr/lib/gcc/i686-pc-linux-gnu/4.4.5/../../../../i686-pc-linux-gnu/bin/ld: warning: libcrypto.so.0.9.8, needed by /usr//lib/libnetsnmp.so, may conflict with libcrypto.so.1.0.0"

Zabbix server works fine when net-snmp was compiled with -ssl, but fails to start when it was compiled with +ssl. Looks like there should be some dependencies added to avoid this situation. 

Reproducible: Couldn't Reproduce

Steps to Reproduce:
1. Add ssl USE for net-snmp
1.1 Rebuild net-snmp
2. Add snmp USE for zabbix (i'm assume +server USE is present)
2.1 Build/rebuild zabbix 
3. configure and start zabbix server with /etc/init.d/zabbix-server start. Possible it should have SNMP-monitored hosts configured, but I'm not sure.
4. look at it's log for results

Actual Results:  
See attached zabbix-server.log 

Expected Results:  
Successfull startup of zabbix-server daemon

I think it is a bug in net-snmp, but i can't reproduce it without Zabbix, as snmpwalk works fine.

After net-snmp was rebuild with -ssl and then again with +ssl I can't reproduce this bug again, as zabbix-server works fine now.

[Comment 1 Stanislav Kogut 2010-11-09 22:02:07 UTC]

# emerge --info zabbix net-snmp

Portage 2.1.9.24 (default/linux/x86/10.0/desktop, gcc-4.4.5, glibc-2.12.1-r3, 2.6.35-gentoo-r7 i686)
=================================================================
                        System Settings
=================================================================
System uname: Linux-2.6.35-gentoo-r7-i686-AMD_Athlon-tm-_XP_2200+-with-gentoo-2.0.1
Timestamp of tree: Tue, 09 Nov 2010 06:15:02 +0000
ccache version 2.4 [disabled]
app-shells/bash:     4.1_p9
dev-java/java-config: 2.1.11-r2
dev-lang/python:     2.6.6-r1, 3.1.2-r4
dev-util/ccache:     2.4-r8
dev-util/cmake:      2.8.1-r2
sys-apps/baselayout: 2.0.1-r1
sys-apps/openrc:     0.6.3
sys-apps/sandbox:    2.3-r1
sys-devel/autoconf:  2.68
sys-devel/automake:  1.10.3, 1.11.1
sys-devel/binutils:  2.20.1-r1
sys-devel/gcc:       4.3.3-r2::funtoo, 4.4.5
sys-devel/gcc-config: 1.4.1::funtoo
sys-devel/libtool:   2.2.10
sys-devel/make:      3.82
virtual/os-headers:  2.6.35 (sys-kernel/linux-headers)
ACCEPT_KEYWORDS="x86 ~x86"
ACCEPT_LICENSE="*"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O2 -fomit-frame-pointer -pipe -march=athlon-4 --param l1-cache-size=64 --param l1-cache-line-size=64 --param l2-cache-size=256 -mtune=athlon -quiet"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/X11/xkb /usr/share/maven-bin-2.2/conf /usr/share/maven-bin-3.0/conf"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.3/ext-active/ /etc/php/cgi-php5.3/ext-active/ /etc/php/cli-php5.3/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -fomit-frame-pointer -pipe -march=athlon-4 --param l1-cache-size=64 --param l1-cache-line-size=64 --param l2-cache-size=256 -mtune=athlon -quiet"
DISTDIR="/usr/portage/distfiles"
FEATURES="assume-digests binpkg-logs distlocks fixlafiles fixpackages news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage"
USE="3dnow a52 aac acl acpi alsa apache2 bash-completion bcmath berkdb branding bzip2 cairo cdr cli consolekit cracklib crypt cxx dbus dri dts dvd dvdr emboss encode exif extras firefox flac fortran gdbm gif gzip hal iconv ipv6 jpeg lcms libnotify logwatch mad mbox mikmod mmx mng modules mp3 mp4 mpeg mudflap mysql ncurses nls nptl nptlonly ogg opengl openmp pam pango pcre pdf perl png ppds pppd pulseaudio python qt3support readline sdl session spell sse sse2 ssl startup-notification subversion svg sysfs tiff truetype unicode usb vim-syntax vorbis x264 x86 xcb xml xorg xulrunner xv xvid zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" PHP_TARGETS="php5-2" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga neomagic nouveau nv r128 radeon savage sis tdfx trident vesa via vmware voodoo" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" 
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, LC_ALL, LINGUAS, MAKEOPTS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY

=================================================================
                        Package Settings
=================================================================

net-analyzer/zabbix-1.8.3 was built with the following:
USE="agent frontend mysql server snmp -curl -ipv6 -jabber -ldap -openipmi -oracle -postgres -proxy -sqlite3 -ssh"
CFLAGS="-O2 -pipe -fomit-frame-pointer"
CXXFLAGS="-O2 -pipe -fomit-frame-pointer"


net-analyzer/net-snmp-5.4.3 was built with the following:
USE="bzip2 ipv6 perl python ssl zlib -X -diskio -doc -elf -extensible -lm_sensors -mfd-rewrites -minimal -rpm (-selinux) -sendmail -smux -tcpd"
CFLAGS="-O2 -pipe -march=athlon-4 -mtune=athlon"
CXXFLAGS="-O2 -pipe -march=athlon-4 -mtune=athlon"

[Comment 2 Samuli Suominen (RETIRED) 2010-11-09 22:24:46 UTC]

> "/usr/lib/gcc/i686-pc-linux-gnu/4.4.5/../../../../i686-pc-linux-gnu/bin/ld:
> warning: libcrypto.so.0.9.8, needed by /usr//lib/libnetsnmp.so, may conflict
> with libcrypto.so.1.0.0"

There was a postinst message after openssl-1.0.0a-r3 upgrade, let me summarize it here:

# revdep-rebuild --library libcrypto.so.0.9.8
# revdep-rebuild --library libssl.so.0.9.8
# rm -f /usr/lib/libcrypto.so.0.9.8
# rm -f /usr/lib/libssl.so.0.9.8