NetworkManager crashed with SIGSEGV in nm_dhcp_dhclient_escape_duid()

[MichiGreat]

Happend shortly after I entered the password for my WLAN. The connection succeeded first, but then network manager crashed and reconnected about four times. Now the connection seems to be stable.

ProblemType: Crash
DistroRelease: Ubuntu 13.04
Package: network-manager 0.9.8.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-12.21-generic 3.8.2
Uname: Linux 3.8.0-12-generic i686
ApportVersion: 2.9.1-0ubuntu1
Architecture: i386
CasperVersion: 1.330
CrashCounter: 1
Date: Fri Mar 15 20:28:40 2013
ExecutablePath: /usr/sbin/NetworkManager
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IpRoute:
 default via 192.168.2.253 dev wlan0 proto static
 169.254.0.0/16 dev wlan0 scope link metric 1000
 192.168.2.0/24 dev wlan0 proto kernel scope link src 192.168.2.3 metric 9
LiveMediaBuild: Xubuntu 13.04 "Raring Ringtail" - Alpha i386 (20130311.1)
MarkForUpload: True
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
ProcCmdline: NetworkManager
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
SegvAnalysis:
 Segfault happened at: 0x80cca26 <nm_dhcp_dhclient_escape_duid+22>: mov 0x4(%esi),%eax
 PC (0x080cca26) ok
 source "0x4(%esi)" (0x00000004) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: network-manager
StacktraceTop:
 nm_dhcp_dhclient_escape_duid ()
 ?? ()
 nm_dhcp_client_start_ip6 ()
 ?? ()
 nm_dhcp_manager_start_ip6 ()
Title: NetworkManager crashed with SIGSEGV in nm_dhcp_dhclient_escape_duid()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

nmcli-con:
 NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT READONLY DBUS-PATH
 Kabelnetzwerkverbindung 1 146fa3ec-0ae6-4020-88ef-f5caebffc500 802-3-ethernet 1363379399 Fr 15 Mär 2013 20:29:59 UTC yes no /org/freedesktop/NetworkManager/Settings/1
 greatwlan2 a1ea50c3-7094-4be9-8f68-710a29f77651 802-11-wireless 1363379402 Fr 15 Mär 2013 20:30:02 UTC yes no /org/freedesktop/NetworkManager/Settings/0
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH
 eth0 802-3-ethernet unavailable /org/freedesktop/NetworkManager/Devices/1
 wlan0 802-11-wireless connected /org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
 RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN
 running 0.9.8.0 connected enabled enabled enabled enabled disabled

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1153342, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.