aptitude and apt-get both segfaulting

[Celejar <celejar@gmail.com>]

This is really ugly - aptitude has begun to consistently segfault on
startup, and apt-get on 'apt-get upgrade' ('update' works):

~# aptitude
Ouch!  Got SIGSEGV, dying..
Segmentation fault

~# apt-get update
Get:1 http://ftp.us.debian.org sid InRelease [146 kB]
Get:2 http://ftp.us.debian.org sid/main i386 Packages [7,478 kB]
Get:3 http://ftp.us.debian.org sid/main TranslationIndex [2,045 B]
Fetched 7,626 kB in 12s (617 kB/s)                                                                            
Reading package lists... Done
~# apt-get upgrade
Reading package lists... Done
Segmentation fault

I've tried (repeatedly) deleting /var/cache/apt/*.bin, but it doesn't
help, nor does anything else I try.

This system has worked fine for years; it's uptodate Sid, and the
problem has begun several days ago.

Celejar
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