aptitude assert failure: *** glibc detected *** aptitude: double free or corruption (!prev): 0x0956f6f0 ***

Binary package hint: aptitude

Problem on the process of actualizing.

ProblemType: Crash
DistroRelease: Ubuntu 10.04
Package: aptitude 0.4.11.11-1ubuntu9
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic i686
Architecture: i386
AssertionMessage: *** glibc detected *** aptitude: double free or corruption (!prev): 0x0956f6f0 ***
CrashCounter: 1
Date: Wed Apr 7 10:48:01 2010
ExecutablePath: /usr/bin/aptitude
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100317.1)
ProcCmdline: aptitude update
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.utf8
 SHELL=/bin/bash
Signal: 6
SourcePackage: aptitude
StacktraceTop:
 __kernel_vsyscall ()
 raise () from /lib/tls/i686/cmov/libc.so.6
 abort () from /lib/tls/i686/cmov/libc.so.6
 ?? () from /lib/tls/i686/cmov/libc.so.6
 ?? () from /lib/tls/i686/cmov/libc.so.6
Title: aptitude assert failure: *** glibc detected *** aptitude: double free or corruption (!prev): 0x0956f6f0 ***
UserGroups: