pacman crashed with SIGSEGV in __libc_start_main()

[federico soffientini]

pacman crashed during the software installation with synaptic

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: xscreensaver-data-extra 5.15-3ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-22.44-generic 3.13.8
Uname: Linux 3.13.0-22-generic i686
ApportVersion: 2.14-0ubuntu1
Architecture: i386
CurrentDesktop: XFCE
Date: Tue Apr 8 09:34:38 2014
ExecutablePath: /usr/lib/xscreensaver/pacman
ProcCmdline: pacman -root
ProcEnviron:
 LANGUAGE=it:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x804fbce: cmp 0xc60(%eax),%ecx
 PC (0x0804fbce) ok
 source "0xc60(%eax)" (0x09c77004) not located in a known VMA region (needed readable region)!
 destination "%ecx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: xscreensaver
StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 ?? ()
 __libc_start_main (main=0x8049c80, argc=2, argv=0xbf875ed4, init=0x8055c20, fini=0x8055c90, rtld_fini=0xb7794180 <_dl_fini>, stack_end=0xbf875ecc) at libc-start.c:287
Title: pacman crashed with SIGSEGV in __libc_start_main()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[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 #1196251, 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.