aptitude-curses crashed with SIGSEGV in pkgInitSystem()

[Bill Risch]

failure occurred while trying to execute aptitude

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: aptitude 0.6.4-1ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-12.20-generic 3.2.2
Uname: Linux 3.2.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
Date: Tue Jan 31 07:23:48 2012
ExecutablePath: /usr/bin/aptitude-curses
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64+mac (20120126)
ProcCmdline: aptitude update
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f673ab4274a <_Z13pkgInitSystemR13ConfigurationRP9pkgSystem+122>: mov (%rdi),%rax
 PC (0x7f673ab4274a) ok
 source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: aptitude
StacktraceTop:
 pkgInitSystem(Configuration&, pkgSystem*&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 ?? ()
 ?? ()
 __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
 ?? ()
Title: aptitude-curses crashed with SIGSEGV in pkgInitSystem()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Bill Risch (brisch)]

Problem occurred while trying to execute aptitude update for latest

[Apport retracing service (apport)]

StacktraceTop:
 pkgInitConfig(Configuration&) () from /tmp/tmpKtnxpc/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 ?? () from /tmp/tmpKtnxpc/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 ?? ()
 ?? ()
 ?? ()

[Apport retracing service (apport)]

Thank you for your report!

However, processing it in order to get sufficient information for the
developers failed (it does not generate a useful symbolic stack trace). This
might be caused by some outdated packages which were installed on your system
at the time of the report:

aptitude version 0.6.4-1ubuntu4 required, but 0.6.4-1ubuntu5 is available
libapt-pkg4.12 version 0.8.16~exp12ubuntu1 required, but 0.8.16~exp12ubuntu3 is available
outdated debug symbol package for libapt-pkg4.12: package version 0.8.16~exp12ubuntu3 dbgsym version 0.8.16~exp12ubuntu2

Please upgrade your system to the latest package versions. If you still
encounter the crash, please file a new report.

Thank you for your understanding, and sorry for the inconvenience!