evolution crashed with SIGSEGV in emsmdb_disconnect_dtor()

[Leon]

Binary package hint: evolution

I tried connecting to exchange with the mapi connector via evolution over vpn (pptp).

ProblemType: Crash
DistroRelease: Ubuntu 10.04
Package: evolution 2.28.3-0ubuntu7
ProcVersionSignature: Ubuntu 2.6.32-18.27-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-18-generic x86_64
NonfreeKernelModules: wl
Architecture: amd64
CrashCounter: 1
Date: Tue Mar 30 08:05:08 2010
ExecutablePath: /usr/bin/evolution
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
ProcCmdline: evolution
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7ff668777ddd <emsmdb_disconnect_dtor+13>: mov 0x38(%rbx),%rdi
 PC (0x7ff668777ddd) ok
 source "0x38(%rbx)" (0x00000038) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: evolution
StacktraceTop:
 emsmdb_disconnect_dtor () from /usr/lib/libmapi.so.0
 ?? () from /usr/lib/libtalloc.so.1
 ?? () from /usr/lib/libtalloc.so.1
 ?? () from /usr/lib/libtalloc.so.1
 _talloc_free () from /usr/lib/libtalloc.so.1
Title: evolution crashed with SIGSEGV in emsmdb_disconnect_dtor()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #531165, 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.

[Leon (leonbo)]

I can't open bug #531165? It says: "Not allowed here".
How could I get permission?