Bug#723636: [apt] apt segfault in pkgDepCache::SetCandidateVersion(pkgCache::VerIterator) ()

[Bastien ROUCARIÈS <bastien.roucaries@u-cergy.fr>]

Package: apt
Version: 0.9.9.4
Severity: normal

i get the following backtrace trying to apt-get install package/unstable

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7afb262 in pkgDepCache::SetCandidateVersion(pkgCache::VerIterator) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
(gdb) bt
#0  0x00007ffff7afb262 in pkgDepCache::SetCandidateVersion(pkgCache::VerIterator) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#1  0x00007ffff7afecb6 in pkgDepCache::SetCandidateRelease(pkgCache::VerIterator, std::string const&, std::list<std::pair<pkgCache::VerIterator, pkgCache::VerIterator>, std::allocator<std::pair<pkgCache::VerIterator, pkgCache::VerIterator>
> >&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#2  0x00000000004236ec in ?? ()
#3  0x0000000000416842 in ?? ()
#4  0x00007ffff7ae0112 in CommandLine::DispatchArg(CommandLine::Dispatch*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#5  0x0000000000409bc5 in ?? ()
#6  0x00007ffff6ef1995 in __libc_start_main (main=0x409960, argc=3, ubp_av=0x7fffffffeba8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffeb98) at libc-start.c:260
#7  0x0000000000409ecf in ?? ()