apt-get crashed with SIGSEGV in strlen()

[jc1985]

Binary package hint: apt

kubuntu jaunty beta updated
I've just installed the additional multimedia capacity for amarok after having being prompted to do that update-notifier

ProblemType: Crash
Architecture: i386
Dependencies:
 libgcc1 1:4.3.3-5ubuntu4
 gcc-4.3-base 4.3.3-5ubuntu4
 libstdc++6 4.3.3-5ubuntu4
 findutils 4.4.0-2ubuntu4
 libc6 2.9-4ubuntu5
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/apt-get
NonfreeKernelModules: nvidia
Package: apt 0.7.20.2ubuntu5
ProcAttrCurrent: unconfined
ProcCmdline: apt-get install plasma-widget-network-manager
ProcEnviron:
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 LANGUAGE=fr_FR:fr:en_GB:en
 SHELL=/bin/bash
Signal: 11
SourcePackage: apt
StacktraceTop:
 strlen () from /lib/tls/i686/cmov/libc.so.6
 std::string::compare () from /usr/lib/libstdc++.so.6
 debPackagesIndex::FindInCache ()
 ?? () from /usr/lib/libapt-pkg-libc6.9-6.so.4.7
 pkgMakeStatusCache ()
Title: apt-get crashed with SIGSEGV in strlen()
Uname: Linux 2.6.28-11-generic i686
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:strlen () at ../sysdeps/i386/i486/strlen.S:40
std::string::compare (this=0xbfe13be8,
debPackagesIndex::FindInCache (this=0x90ac180,
CheckValidity (CacheFile=<value optimized out>, Start=
pkgMakeStatusCache (List=@0xbfe13e70, Progress=@0xbfe13f4c,